Index to the US Patent Classification

Index to the US Patent Classification

What follows is part of the Index to the US Manual of Classifications for patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retreive patent titles by entering the class/subclass in the box below.


Enter a class/subclass code here to get a list of patent titles. Use any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any subclass letters capitalized. Currently Design Patent titles (those in the classes of the form Dxx.yy) are not retreivable.

Enter class/subclass code:


ARENA
  AMUSEMENT .........................472/92+
     FOR RACING .....................472/85+
     FOR WHEELED OR GLIDING VEHICLE .472/88+
     ICE OR ROLLER SKATING RINKS ....472/88+
  CONSTRUCTION ......................D25/12
  LIGHTING ..........................362/227+

AREOMETERS .......................... 73/441+

ARGOL ............................... 562/585

ARGON ............................... 423/262
  LAMPS .............................313/567+

ARITHMETIC TEACHING ................. 434/191+
  CALCULATORS .......................235/61.R+

ARM
  ARTIFICIAL ........................623/57+
  PHONOGRAPH ........................369/244+
     ACOUSTICAL .....................369/158
  PROTECTORS ........................2/16+
  ROBOT .............................901*
  SIGNAL
     RAILWAY SEMAPHORE ..............246/482+
     VEHICLE DIRECTION ..............116/52+

ARM BAND ............................ D02/624+


ARM REST ............................ 248/118
  CHAIR FOLDING .....................297/35+
  CHAIR OR SEAT .....................297/411.2+
  CHAIR RECLINING ...................297/323
  CRUTCHES ..........................135/73
  LAND VEHICLE ......................296/71
  PIANIST ...........................84/469
  SOFA BED ..........................5/52
  STRINGED INSTRUMENTS ..............84/328
  WRITING AID .......................248/118.1+


ARMATURE
  BANDING ...........................310/271
     PROCESS ........................29/598
     WINDING LATHES .................242/7.4
  COIL ..............................310/195+
     RING WINDING ...................242/4.BE+
     TAPING .........................242/5+
  CORES .............................310/216+
  DYNAMO ............................290
     DIFFERENTIAL WOUND IN ARC LAMP .314/76
     DISK ...........................310/268
     DRUM ...........................310/265
     MULTIPLE .......................290/6
     POLE ...........................310/269
     RING ...........................310/267
  ELECTROMAGNET .....................335/279+
     PLUNGER TYPE ...................335/255+
  ELECTROMAGNETIC SWITCH ............335/80+
  ELECTROMAGNETIC SWITCH ............335/95+
  ELECTROMAGNETICALLY ACTUATED IN
     ARC LAMP .......................314/119+
  FAULT TESTER ......................324/545+
  GROWLER ...........................324/537+
  MAKING
     COMMUTATOR .....................29/597
     ELECTROMAGNET ..................29/602.1+
     ROTOR ..........................29/598
  MANUFACTURE OF ....................29
  MASSAGE DEVICE VIBRATOR ...........128/41
  RAILWAY SWITCH MOTOR RECIPROCATING 246/225+
  RAILWAY SWITCH MOTOR ROTARY .......246/240+
  TESTERS ...........................324/555+
  WEDGES ............................310/261+
  WINDING APPARATUS, DRUM ...........242/7.4
     TRANSVERSE SLOT ................242/7.5R
  WINDING METHODS AND APPARATUS .....242
     APPARATUS, DRUM WINDING ........242/7.4
     APPARATUS, TRANSVERSE242/7.5R
       SLOT WINDING .................242/7.5R
     ASSEMBLYING APPARATUS ..........29/732+
     COMBINED OPERATIONS ............29/605
     METHOD, DRUM OR
       TRANSVERSE SLOT WINDING ......242/7.3+
     MISCELLANEOUS ..................29/605
     RING ...........................242/5

ARMCHAIR ............................ D06/334+


ARMING DEVICES ...................... 102/221+
  BOMB,FLARE, & SIGNAL DROPPING .....89/1.55

ARMOR AND ARMORED
  BODY ARMOR ........................2/2.5
  CABLE .............................174/102.R+
     FITTINGS .......................174/50+
  CONDUIT ...........................138/123+
     ELECTRIC CONDUCTIVE SHEATH .....174/102.C+
     LINER ..........................138/137+
     SPIRALLY WOUND .................138/134+
  LOCK PROTECTION ...................70/417
  PIERCING AMMUNITION ...............102/517+
  RAILROAD TIES .....................238/95+
  SHIELDS ...........................89/36.1+
  SHIELDS AND PROTECTORS ............109/49.5
     PORT COMBINED ..................109/58.5
  TIRES RESILIENT ...................152/167+
  VEHICLE ...........................296/188
     RAILWAY CARS ...................105/394
     SHIPS ..........................114/9+
  WALL STRUCTURE ....................109/78

ARMPIT SHIELD ....................... 2/53+
  FASTENER ..........................24/903*

ARMS, ............................... D22
  MAKING ............................29/1.1+

AROMATIC ............................ 260/350.R+
  HYDROCARBON .......................585/24+
     HYDROGENATION OF ...............585/266+
     PURIFICATION OF ................585/800+
     SYNTHESIS OF ...................585/400+

AROMATIZATION
  HYDROCARBON SYNTHESIS .............585/407+
  MINERAL OIL .......................208/46+


ARRANGING OR PILING APPARATUS  SEE
 ASSEMBLING; PLACERS
  ARTICLE ...........................414/788+
  ARTICLE UNPILING ..................414/795.4+
  ARTICLES ON CONVEYORS .............198/373+
  BULK MATERIAL BY CONVEYOR ROTATION 198/631
  BULK MATERIAL BY CONVEYORS ........198/633+
  CIGARETTE MAKING COMBINED .........131/282
  CONVEYORS FROM STATIC SUPPORT .....198/508
  DRIED OR GAS TREATED MATERIAL .....34/38
  HORTICULTURAL TOOLS ...............D08/1+
  PILES ARRANGEMENTS HOLDERS OR
     SPACERS ........................206
  SHEET MATERIAL ASSOCIATING OR
     FOLDING ........................270
  STACKERS FOR FLUID CURRENT
     CONVEYORS ......................406
  TOBACCO STRINGERS OR UNSTRINGERS ..414/26
  TYPE ..............................276/36+

ARRAY PROCESSORS .................... 395/800

ARRESTER
  CASH REGISTER KEY .................235/26
  LIGHTNING .........................361/117+
     COMBINED WITH FUSE .............337/31+
     DESIGN .........................D10/105
  LOOM LETOFF .......................139/111+
  LOOM TAKE UP ......................139/314
  METALLURGICAL FUME ................266/144+
  SPARK .............................110/119+
     FIXED WHIRLER OR ROTATOR
       DEFLECTOR SEPARATORS .........55/447+
     ILLUMINATING BURNERS HAVING ....362/380

ARRHYTHMIA DETECTOR ................. 128/702

ARROW ............................... 273/416+
  CARRIERS ..........................224/916*
  DESIGN ............................D22/115
  MAKING ............................29/1.2+
  SIGHT .............................33/265


ARSANILIC ACID ...................... 556/74

ARSENIC ............................. 423
  ALLOYS ............................420/579
  ARSENATES .........................423/602+
  AZOLES CONTAINING .................548/102
  BIOCIDES CONTAINING ...............424/621+
     ORGANIC ........................514/504
  CARBOCYCLIC OR ACYCLIC COMPOUNDS
     CONTAINING .....................556/64+
  HALIDES ...........................423/462+
  MEDICINES CONTAINING ..............424/621+
     ORGANIC COMPOUNDS OF ...........514/504+
  MISC  CHEMICAL MANUFACTURE ........156/DIG.81
  OXIDES ............................423/617
  PYRIDINE NUCLEUS COMPOUNDS ........546/72
  PYROMETALLURGY ....................75/706
  SULPHIDES .........................423/511

ARSENITES ........................... 423/601

ARSENO CARBOCYCLIC OR ACYCLIC
 COMPOUNDS ..........................556/65+

ARSPHENAMINES ....................... 556/66+

ART (SEE SUBJECT INVOLVED)
  COLLAGE ...........................428/39
  ETCHING PROCESS ...................156/658
  NON-UNIFORM COATING ...............427/256+
  ORNAMENTAL STITCHING ..............112/439
  SECTIONAL LAYER ...................423/410+
  SUPERPOSED ELEMENTS ...............428/77+

ARTERY, ARTIFICAL ................... 623/1


ARTICLE (SEE TYPE OF ARTICLE)
  ADVERTISING DESIGN ................D20/10+
  CARRIER ...........................224
     HUNTING COATS ..................2/94
  CONTROLLED BURNER .................126/52
  COOLING
     MAGAZINE TYPE CABINET ..........312/36
  DISPENSING ........................221
     FABRIC DELIVERY ROLL HOLDER ....242/55.2+
     MAGAZINE TYPE ..................312/35
     MATCH AND TOOTHPICK ............206/102+
     PACKAGES .......................206/233
     PELLET PILL TABLET POCKET USE ..206/528+
     WITH HEATING OR COOLING ........221/150.R
     WITH TREATING MEANS ............221/135+
  HANDLING (SEE PROCESS OR MACHINE   414
     WITH WHICH ASSOCIATED) .........414
     CONVEYORS ......................198
     HAND OR HOIST LINE IMPLEMENTS ..294
  LAND VEHICLE COMPARTMENT ..........296/37.1+
  STACKING DISPENSER ................221/175

ARTICLE SUPPORT BRACKETS ............ 248/200+
  SPECIALLY MOUNTED OR ATTACHED .....248/205.1+
     CORNER .........................248/220.1
     INTERLOCKED BRACKET AND SUPPORT 248/220.2+
     POST OR COLUMN ATTACHED ........248/218.4+
     SUPPORT BEING PIERCED OR CUT ...248/216.1+

ARTICULATED FUEL .................... 44/531

ARTICULATOR ......................... 433/54


ARTIFICIAL INTELLIGENCE ............. 395/1+
  AEROSPACE
     CONTROL ........................395/905*
     DIAGNOSTICS ....................395/913*
  AGRICULTURE
     CONTROL ........................395/904*
     DIAGNOSTICS ....................395/912*
  APPLICATIONS ......................395/902+
  BUSINESS ..........................395/925*
     TIME MANAGEMENT ................395/926*
  CAD ...............................395/919*
  CASE ..............................395/922*
  COMMUNICATIONS
     CONTROL ........................395/909*
     DIAGNOSTICS ....................395/917*
  COMPUTER AIDED DESIGN .............395/919*
  COMPUTER AIDED SOFTWARE
     ENGINEERING ....................395/922*
  COMPUTER PROGRAM PREPARATION ......395/922*
  COMPUTER, INTERNAL & NETWORK
     CONTROL ........................395/908*
     DIAGNOSTICS ....................395/916*
  CONSTRUCTION INDUSTRY .............395/923*
  CONTROL OR CONTROLLERS ............395/903+
     AEROSPACE ......................395/905*
     AGRICULTURE ....................395/904*
     COMMUNICATIONS .................395/909*
     COMPUTERS ......................395/908*
     ELECTRONIC CIRCUITS ............395/908*
     ELEVATORS ......................395/910*
     MACHINE TOOLS ..................395/904*
     MACHINES .......................395/904*
     MANUFACTURING ..................395/904*
     POWER PLANT ....................395/907*
     PROCESS PLANT ..................395/906*
     ROBOT ..........................395/904*
     VEHICLES .......................395/905*
  DESIGN ............................395/919*
  DIAGNOSTICS
     AEROSPACE ......................395/913*
     AGRICULTURE ....................395/912*
     COMMUNICATIONS .................395/917*
     COMPUTERS ......................395/916*
     ELECTRONIC CIRCUITS ............395/916*
     ELEVATORS ......................395/918*
     MACHINE TOOLS ..................395/912*
     MACHINES .......................395/912*
     MANUFACTURING ..................395/912*
     MEDICAL ........................395/924*
     NON-MEDICAL ....................395/911+
     POWER PLANT ....................395/915*
     PROCESS PLANT ..................395/914*
     ROBOT ..........................395/912*
     VEHICLES .......................395/913*
  EDUCATION .........................395/927*
  ELECTRONIC CIRCUITS
     CONTROL ........................395/908*
     DIAGNOSTICS ....................395/916*
  ELEVATORS
     CONTROL ........................395/910*
     DIAGNOSTICS ....................395/918*
  ENGINEERING .......................395/932*
  ENVIRONMENT .......................395/930*
  FUZZY LOGIC
     APPLICATIONS ...................395/900*
     COMPUTER .......................395/1
     CONTROLLER .....................395/1
     EXPERT SYSTEM ..................395/61
  GEOLOGICAL ........................395/929*
  GOVERNMENT ........................395/933*
  INFORMATION MANAGEMENT ............395/934*
  INFORMATION RETRIEVAL .............395/934*
  KNOWLEDGE PROCESSING ..............395/10+
     APPLICATIONS ...................395/902+
     EXPERT SYSTEMS .................395/50+
     GENETIC ALGORITHMS .............395/13
     GRAPHICAL INTERFACE ............395/12
     NATURAL LANGUAGE INTERFACE .....395/12
     NEURAL NETWORKS ................395/21+
     PLURAL PROCESSING SYSTEMS ......395/11
     TRAINABLE PROCESSING SYSTEMS ...395/20+
  LAW ...............................395/933*
  LAW ENFORCEMENT ...................395/933*
  LAYOUT FOR CONSTRUCTION ...........395/921*
  LAYOUT OF CIRCUIT .................395/921*
  LIBRARY MANAGEMENT ................395/934*
  MACHINE TOOLS
     CONTROL ........................395/904*
     DIAGNOSTICS ....................395/912*
  MACHINES
     CONTROL ........................395/904*
     DIAGNOSTICS ....................395/912*
  MANUFACTURING
     CONTROL ........................395/904*
     DIAGNOSTICS ....................395/912*
  MATHEMATICS .......................395/932*
  MEDICAL ...........................395/924*
  POWER PLANT
     CONTROL ........................395/907*
     DIAGNOSTICS ....................395/915*
  PROCESS PLANT
     CONTROL ........................395/906*
     DIAGNOSTICS ....................395/914*
  ROBOT WITH ARTIFICIAL INTELLIGENCE
     CONTROL ........................395/904*
     DIAGNOSTICS ....................395/912*
  ROBOT WITH KNOWLEDGE PROCESSING ...395/81
  ROBOTIC CONTROL ...................395/80+
  SCIENCE ...........................395/932*
  SEISMOLOGY ........................395/929*
  SIMULATION ........................395/920*
  SPEECH SIGNAL PROCESSING ..........395/2
  TEACHING ..........................395/927*
  TIME MANAGEMENT IN BUSINESS .......395/926*
  VEHICLES
     CONTROL ........................395/905*
     DIAGNOSTICS ....................395/913*
  WEATHER ...........................395/931*

ARTIFICIAL NEURAL SYSTEM SEE NEURAL NETWORKS


ARTIFICIAL SEE IMITATION, SYNTHETIC
  ARMS ..............................623/57+
  ARTERY ............................623/1
  BOARDS
     LAMINATED ......................428/105+
     PARTICLE .......................428/403
  BODY MEMBER .......................623
     ELECTRICAL ACTUATION ...........623/24+
     FLUID ACTUATION ................623/26
  BONES .............................623/16
  BUTTER
     MAKING .........................426/603+
     RENOVATING OR TREATING
       APPARATUS ....................99/452
       PROCESS ......................426/663
  EAR ...............................623/10
  EYE PROSTHESIS ....................623/4+
  FAUNA .............................428/16
  FEET ..............................623/53+
  FIBER
     MAKING .........................264/165+
     PLASTICIZING ...................8/130.1+
  FINGERNAILS .......................132/73
  FISH BAIT .........................43/42
     TRAP HOOK COMBINED .............43/35
  FLIES .............................43/42.24+
  FLORA .............................428/17+
  FLOWER ............................428/24+
  FOG ...............................252/305
  FUEL (SEE FUEL) ...................44
  GARLAND ...........................428/10
  GRASS .............................428/17
  HEART VALVE .......................623/2
  HORIZON
     LEVELS AND PLUMBS ..............33/365+
     LIGHT RAY TYPE MEASUREMENT .....33/320+
  INSEMINATION ......................604/906*
  INTELLIGENCE SEE ARTIFICIAL INTELLIGENCE
  LARYNX ............................623/9
  LEATHER ...........................428/904*
  LEGS ..............................623/27+
  MUSK ..............................568/375
  NOSE ..............................623/10
  REEF ..............................405/21+
  RESPIRATION .......................128/28+
  SEAWEED ...........................405/24
  SILK
     CELLULOSE ESTER OR ETHER
       CONTAINING COMPOSITION .......106/169+
     CELLULOSE OR DERIVATIVE ........536/56+
     CHEMICAL MODIFICATION ..........8/129+
     CUPRAMMONIUM COMPOSITIONS ......106/167
     DYEING PROCESSES & COMPOSITIONS 8
     FILAMENT FORMING APPARATUS .....425/66
     FILAMENT FORMING APPARATUS .....425/67+
     FILAMENT FORMING APPARATUS .....425/76
     FILAMENT FORMING APPARATUS .....425/382.2
     FILAMENT FORMING PROCESS .......264/165+
     NITROGEN CONTAINING ............536/30+
     REGENERATED CELLULOSE ..........106/168
     SPINNING OR TWISTING PROCESS ...57/76
     SPINNING OR TWISTING STRAND
       STRUCTURE ....................57/243+
     SWELLING OR PLASTICIZING .......8/130.1+
     VISCOSE COMPOSITIONS ...........106/164+
  SNOW ..............................106
     EXHIBITOR ......................40
  SOD ...............................428/17
  STONE
     DYEING .........................8/523
     FIRING .........................264/56+
     INORGANIC SETTABLE INGREDIENTS .106/638+
     MOLDING PROCESS ................264/333
     PRECIOUS STONE .................501/86
     STATIC MOLD ....................249/140
     WATER GLASS PLASTER OF PARIS ...106/611
     WATER GLASS PORTLAND CEMENT ....106/606+
  STONE DECORATIVE FACE .............52/311.1+
  TEETH .............................433/167+
     MOLDS ..........................425/2
     MOLDS ..........................425/175
     STATIC MOLD ....................249/54
  THREE DIMENSIONAL PRODUCT .........428/15+
  TOBACCO ...........................131/353
  TRACHEA ...........................623/9
  TREE ..............................428/18+
  TURF ..............................428/17
  WREATH ............................428/10

ARTILLERY ........................... 89
  CALCULATORS ORDNANCE CONTROL ......235/400
  SIGHTS ............................33/235+

ARTIST SEE PAINTERS AND PAINTING
  CANVAS CARRIERS ...................294/137
  FINE ARTS MATERIALS ...............D19/35+
  MATERIALS, DESIGN .................D19
  PAINT BOXES .......................206/1.7+
  PALETTE ...........................D19/35+

ARTWORK
  SHEET BEARING .....................428/195


ASBESTOS
  CATALYST CARRIER ..................502/439+
  CHEMICAL TREATMENT ................423/167.1
  COMMINUTION .......................241/4
  FIBER LIBERATION ..................162/153+
  NON-STRUCTURAL LAMINATES ..........428/443+

ASCARITE ............................ 252/408.1

ASCORBIC ACID ....................... 549/315
  TESTS FOR .........................436/129

ASCOT ............................... D02/605+

ASEPTIC CULTIVATION ................. 435/800*

ASH
  ASHPAN BOILER FEED HEATERS ........122/413
  CANS ..............................110/165.R+
  CIGARS AND CIGARETTES WITH ASH
     HOLDER .........................131/349+
  FURNACES ..........................110/165.R+
  HOLDER COMBINED WITH SMOKING
     DEVICE .........................131/174+
  SIFTERS ...........................209/233+
     DESIGN .........................D23/420
  STOVES ............................126/242+
  TRAY ..............................232/43.1+
     COMBINED WITH OTHER DEVICES ....131/231+
     DESIGN .........................D27/102+
     GAS SEPARATION, USED IN ........55/385.8
     LUMINOUS .......................250/462.1
     VEHICLE BUILT IN ...............296/37.9
     VEHICLE MOUNTED ................131/329+

ASPARAGUS HARVESTER ................. 56/327.2


ASPHALT ............................. 208/22+
  BINDERS IN COATING COMPOSITIONS ...106/DIG.7
  CEMENT ............................106/273.1+
  COMPOSITIONS ......................106/273.1+
     ALKALI METAL SILICATE ..........106/622
     CARBOHYDRATE ...................106/216
     CARBOHYDRATE GUM ...............106/207
     CASEIN .........................106/145
     CELLULOSE ETHER OR ESTER .......106/191
     COATING OR PLASTIC EMULSIONS ...106/277
     EMULSIONS ......................252/311.5
     FAT OR FATTY ACID SALT .........106/269
     FATTY OIL ......................106/246+
     FEATHERS HAIR OR LEATHER .......106/156
     GELATINE OR GLUE ...............106/134
     INK ............................106/31.R+
     MOLD ...........................106/38.8
     MOLD COATING ...................106/38.25
     NATURAL RESIN ..................106/232+
     NATURAL RESIN AND DRYING OIL ...106/225
     NATURAL RESIN AND NONDRYING OIL 106/229
     PLASTER OF PARIS ...............106/670
     POLISH .........................106/10
     PORTLAND CEMENT ................106/668+
     PROLAMINE ......................106/152
     PROTEIN MISCELLANEOUS ..........106/160
     STARCH .........................106/212
  MAKING, TREATING AND RECOVERY .....208/39+
  MELTING FURNACES ..................126/343.5A
  MIXERS ............................366/1+
     DESIGN .........................D15/19
  PAVEMENTS .........................404/17+
  PAVING MACHINERY ..................404/83+
  POLYMERS CONTAINING OR DERIVED FROM (SEE SYNTHETIC RESIN OR NATURAL RUBBER)

ASPIRATOR
  BODY FLUIDS .......................604/19+
     FLOWING LIQUID ASPIRATES GAS ...261/DIG.75
  BODY INSERTED .....................604/35
  JET PUMP ..........................417/151+
  MIXING ............................137/888+
  STATIC MOLD .......................249/102+

ASPIRIN ............................. 560/143
  IN DRUG ...........................514/165


ASSEMBLING
  APPARATUS .........................29/700+
     CAPS AND CARTRIDGES ............86/12
     CHAIN LINKS ....................59/25
     CHAINS .........................59/1+
     CHAINS SPROCKET ................59/7
     CLEANING COMBINED ..............134/59
     ELECTROSTATIC TYPE .............29/900*
     LIQUID PURIFICATION ............210/232
     MATRICES TYPE CASTING ..........199/9+
     NAILING AND STAPLING COMBINED ..227/19+
     PRESS TYPE FILTER ..............210/230
     SUPPORTERS GARMENT .............223/49
     TIRE AND RIM ...................157
     WELDING COMBINED ...............228/4.1+
  BOLTS NUTS AND WASHERS ............470/3+
  BOXES
  CLOSURE CAP AND LINER .............413/56+
     LAMINATING .....................156
  ELECTRIC DISCHARGE DEVICES ........445/23+
  HINGES ............................29/11
  LAMPS AND VACUUM TUBES ............445/23
     APPARATUS ......................445/60+
     PROCESSES ......................445/1+
  MOLD PARTS ........................164/339+
  PROCESSES
     BATTERIES ......................29/623.1+
     ELECTROSTATIC TYPE .............29/900*
  RECEPTACLE WITH CLOSURE ...........413/2+
     APPARATUS ......................413/26+
  SHEET MATERIAL ....................270
  SHOE HEELS ........................12/50+
  SHOE UPPERS .......................12/52
  TEXTILE FIBERS ....................19/144+
  WELL ..............................166/373+

ASSEMBLY MEANS
  FLUID HANDLING ....................137/315
  PIPE JOINT ........................285/18

ASSOCIATING SHEET MATERIAL .......... 270
  TOBACCO LEAF ......................131/327


ASSORTER SEE ASSOCIATED PROCESS,
 ARTICLE, OR MACHINE
  BRUSH MAKING ......................30/18
  CLEANING MACHINES COMBINED ........15/3+
  COIN ..............................453/3+
  LIVESTOCK .........................119/842+
  PRINTING MACHINES COMBINED ........101
  SOLID MATERIAL ....................209

ASSUMPTION BASED TRUTH MAINTENANCE    395/55
 SYSTEMS ............................395/55

ASTROLABE ........................... 33/1.R

ASTROLOGY ........................... 434/106

ASTRONOMICAL INSTRUMENT
  CLOCK .............................368/15+
  GLOBES ............................33/268+
  OPTICAL ...........................356/138+
  SOLAR POSITION LOCATOR ............33/268+
  TELESCOPES ........................359/399+
  TELLURIONS ........................33/268+

ASTRONOMY TEACHING .................. 434/284+

ASTROPHYSICAL INSTRUMENTS
  ANGLE MEASUREMENT .................33/281+
     SOLAR ..........................33/268+
  SPECTROSCOPE ......................356/300+
  TELESCOPE .........................359/399+


ASTYGMATISM
  OPHTAHALMIC LENSES FOR CORRECTION .351/176
  TEST CHART ........................351/241

ATHLETIC
  EQUIPMENT SEE TYPE
  PROTECTIVE HAND COVERING ..........D29/20+
  SHOES .............................D02/902+
  SHOES, MAKING .....................12/142.P
  SHORTS ............................D02/731+

ATMOMETER ........................... 374/39+

ATMOSPHERE
  SPECIAL ATMOSPHERE ................156/DIG.89
  UTILIZING SPECIAL
     GLASS MAKING ...................65/32.1+
     REFRIGERATION ..................62/78

ATMOSPHERIC ELECTRICITY ............. 307/149
  CHEMICALLY INERT OR REACTIVE ......425/815*
  COLLECTING ........................310/308+
     WITH CONDENSER .................320/1
  DISCHARGING .......................361/212
  GROUNDING .........................174/6+
  LIGHTNING RODS ....................174/2+

ATMS ................................ 395/55


ATOMIC ENERGY ....................... 376
  FISSION REACTIONS .................376/349
  FUSION REACTIONS ..................376/100
  POWER UTILIZATION .................376/336
  POWER UTILIZATION .................376/402
  POWER UTILIZATION .................376/370
  POWER UTILIZATION .................376/391
  TRANSMUTATION REACTIONS ...........376/156
  WELL PROCESSES ....................166/247

ATOMIC HYDROGEN WELDING ............. 219/75

ATOMIZER ............................ 239
  CONTAINER OR BOTTLE WITH ..........D28/91.1
  ELECTRICALLY HEATED ...............392/386+
  ELECTRICALLY HEATED ...............392/324+
  FUMIGATOR .........................422/305+
  GAS LIQUID CONTACT ................261/78.1
     NON-CARBORETOR .................261/78.2
  INTERNAL COMBUSTION ENGINE SUPPLY .123/434+
  LIQUID FUEL BURNER ................239
  MEDICAL ...........................D24/110
  MEDICATOR .........................128/200.14+
  PERFUME ...........................239/355+
  SPRAYER ...........................239/337+
  TEMPERATURE RESPONSIVE CONTROL ....236/8

ATROPINE ............................ 546/131
  IN DRUG ...........................514/304

ATTACK DEFEATING LOCKS
  MECHANISM .........................70/1.5+
     KEY LOCK .......................70/416+

ATTEMPERING
  CANNED FOOD PROCESSORS ............99/367+
     CONVEYOR COMBINED ..............99/361


ATTENUATOR .......................... 333/81.R
  LIGHT CONDUCTOR WITH PHOTOCELL ....250/227.11
  PADS ..............................333/24.R+
  RESISTANCE STRUCTURE ..............338
  VOLTAGE MAGNITUDE CONTROL
     RESISTORS ......................323/369

ATTIC
  FANS ..............................416
     INLET ..........................454/338
     INLET AND OUTLET ...............454/249
     OUTLET .........................454/341+
     WIND OPERATED AIR PUMP .........454/240
  VENTILATORS .......................454+
     HAVING BOTH INLET AND OUTLET
       AIRWAYS ......................454/237+
     HAVING INLET AIRWAY ............454/254+
     HAVING OUTLET AIRWAY ...........454/339+

ATTITUDE OR PITCH INDICATOR ......... 33/328+

ATTRITION COMMINUTOR
  APPARATUS .........................241/284
     SUSPENDED PARTICLES ............241/39
  PROCESSES .........................241/26
     SUSPENDED PARTICLES ............241/5

AUCTION
  LIVESTOCK TAGS ....................40/300+

AUDIENCE
  RADIO SURVEY ......................455/2
  REACTION APPARATUS
     LOUDNESS METER .................73/646
     VOTING MACHINES ................235/51+
  TELEVISION SURVEY .................358/84


AUDIO AMPLIFIER ..................... 330

AUDIO-VISUAL TEACHING MACHINE ....... D19/60

AUDIOMETER .......................... 73/585
  DESIGN ............................D24/151+

AUDION T M
  AMPLIFIER, ELECTRONIC TUBE TYPE ...330
  CATHODE RAY TUBE STRUCTURE ........313/364+
  MISCELLANEOUS SYSTEMS .............328
  OSCILLATION GENERATORS ............331
  STRUCTURE .........................313

AUDIPHONE ........................... 381/68+
  AMPLIFIER FOR .....................330

AUDITORIUM .......................... 52/6
  ACOUSTICS .........................181/30

AUGER (SEE BIT; DRILL)
  BORING MACHINES WOOD ..............408/199
  EARTH BORING ......................175/394+
  LAND ANCHORS ......................52/157
  MANUFACTURE
     DIES ...........................72/470+
     MACHINES .......................76/2+
     PROCESSES ......................76/102
     TWISTING STOCK .................72/299
  MORTISING MACHINES WOOD ...........144/69+
  POST BASE .........................52/157
  WOOD ..............................408/199+


AURAMINE ............................ 564/269

AURICLE ............................. 181/129+

AURINES ............................. 552/115
  FUCHSONE ..........................552/115

AUTOCLAVES .......................... 422/242
  COOKER SEE STEAMING FOOD

AUTOCOLLIMATOR ...................... 33/297+
  WITH PHOTOCELL ....................356/152+

AUTOFRETTAGE ........................ 29/1.11

AUTOGENOUS BONDING
  OF PARTICLES ......................264/123+
  OF RUNNING LENGTH FIBERS ..........156/180+
  OF SELF-SUSTAINING LAMINAE ........156/308.2+

AUTOGENOUS WELDING .................. 228/196+
  ELECTRIC ..........................219/78.1+

AUTOGIRO ............................ 244/17.11+
  AERIAL TOY ........................446/36+
  AIRPLANE COMBINED .................244/8


AUTOGRAPH REGISTER .................. D18/21

AUTOHARP T M ........................ 84/8+


AUTOMATIC SEE CONTROLLER & CONTROL
  AUTOMATED MACHINE
     BROACHING ......................409/245+
     GEAR CUTTING ...................409/2+
     MILLING ........................409/80+
     PLANING ........................409/289+
  CAMERA
     EXPOSURE CONTROL ...............354/400+
     FOCUSING .......................354/410+
  CUTOUTS FOR ELECTRIC CIRCUIT ......20
     ELECTROMAGNETIC ................335
     FOR LAMP CIRCUIT ...............315
  DISPENSER .........................222/52+
     WITH CUTOFF OPERATOR ...........222/14+
     WITH RECORDER REGISTER OR
       INDICATOR ....................222/23+
  DRYING AND GAS OR VAPOR CONTACT
     WITH SOLIDS ....................34/43+
  EARTH BORING MEANS ................175/24+
  FIRE ALARMS .......................116/101+
     ELECTRIC .......................340/500+
       FLAME ........................340/577+
       HEAT .........................340/584+
       SMOKE ........................340/628+
     WITH INDICATOR .................116/5
  FISH BUTCHERING ...................452/150+
  FLEXIBLE PARTITIONS AND PANELS
     EG CURTAINS ....................160/1+
  FOOD TREATING MACHINE .............99/486+
  GLASS MAKING APPARATUS ............65/160+
  GRAIN HULLERS AND SCOURERS ........99/488
  GRAPPLES ..........................294/110.1+
  GUN SEE GUN
  HEAT EXCHANGE .....................165/13
     HEATING AND COOLING ............165/14
  HEATING SYSTEMS ...................237/2.R+
  METAL DEFORMING
  MINING CONTROL ....................299/1.5+
     APPARATUS ......................72/6+
  MUSICAL INSTRUMENTS ...............84/2+
     COMB TYPE ......................84/94.1+
     ELECTRICAL TONE GENERATION .....84/600+
     STRINGED EG PIANOS .............84/7+
     TWO DIFFERENT INSTRUMENTS ......84/2+
     WIND EG ORGANS .................84/83+
  NUCLEAR REACTIONS .................376/207
  PRESS CONTROL .....................10/43
  REFRIGERATION .....................62/132+
  SOLID MATERIAL COMMINUTION OR
     DISINTEGRATION .................241/33+
  TELLER MACHINE
     USING CRYPTOGRAPHIC CODE .......380/24
  TEMPERATURE OR HUMIDITY REGULATION 236
     CEREAL PUFFING APPARATUS .......99/323.4+
     COOKING APPARATUS ..............99/325+
     DISTILLATION SEPARATORY
       PROCESSES ....................203/2
     DISTILLATION SEPARATORY SYSTEMS 202/160
     ELECTRONIC TUBE OR LAMP ........315/117
     HUMIDOR ........................312/31+
     HYGROSTATS .....................73/29.2+
     INFUSER,EG PERCOLATOR ..........99/281+
     LIQUID HEATERS AND VAPORIZERS ..122/446+
     MINERAL OIL DISTILLATION
       CONDENSERS ...................196/141
     MINERAL OIL DISTILLATION
       VAPORIZORS ...................196/132
  THERMOSTATS .......................60/527+
     WATER HEATER VESSELS ...........126/374
  TOOL DRIVING OR IMPACTING DEVICE ..173/2+
  VOLUME CONTROL
     AMPLIFIER COUPLING IMPEDANCE ...330/144+
     AMPLIFIER HAVING OF BIAS
       OR POWER SUPPLY ..............330/127+
     AMPLIFIER THERMAL COUPLING
       IMPEDANCE ....................330/143
     IN RADIO RECEIVER ..............455/234.1+
  WAVE TRANSMISSION LINES & NETWORKS 333/17.1+
  WEIGHER ...........................177/60+
     CIGAR AND CIGARETTE MAKING .....131/280

AUTOMATION (SEE ROBOT) .............. 901/1*


AUTOMOBILE (SEE LAND VEHICLE; MOTOR VEHICLE)
  AIR BAG PASSENGER RESTRAINTS ......280/728.R+
  BEDS ..............................5/118+
     CRIBS ..........................5/94
  BODY CRUSHERS .....................10/901*
  CARBURETOR SEE CARBURETOR .........261
  COMPOUND REPAIR TOOLS .............7/100+
  COOLER ............................62/243
  DOOR HANDLE .......................D08/300+
  ELECTRIC DISTRIBUTION SYSTEMS .....307/10.1+
  ELECTRIC MOTORS ...................D13/112
  FENDER COVERS .....................280/762+
  FRAME STRAIGHTENER ................72/705*
  HEADLIGHT .........................362/61+
     DESIGN .........................D26/28+
     DIMMING SYSTEM .................315/82+
     ELECTRIC SYSTEM FOR ............315/82+
     MUTUALLY RESPONSIVE AUTOMATIC
       DIMMERS ......................315/82+
     RETRACTABLE ....................362/65
     SEALED BEAM ....................313/113+
  HEATER ............................237/12.3R
  HEATER AND COOLER .................165/42+
  HOOD LIGHT ........................362/80
  HORN ..............................D10/116+
  INSIGNIA ..........................D11/95+
  LICENSE TAGS ......................40/200
     CHANGEABLE YEAR SECTION ........40/207+
  LIFT  OR HOIST ....................269/58+
  LIGHTS COMBINED WITH PART .........362/61+
     CEILING OR ROOF LIGHT ..........362/74
  MIRRORS ...........................359/838+
     PLURAL .........................359/850+
     PLURAL REFLECTIONS .............359/857+
  MISCELLANEOUS EQUIPMENT DESIGN ....D12/155+
  NAME PLATE FASTENERS ..............40/662+
  RADIO .............................455/345
     PORTABLE .......................455/346
     PORTABLE TRANSMITTER ...........455/99
  REGISTRATION PLATES ...............D20/13+
  ROLL BARS .........................280/756
  SAFETY BELT OR HARNESS ............297/464+
     MOTOR VEHICLE SYSTEM RESPONSIVE 180/268+
     PASSIVE ........................280/802+
  SAFETY PROMOTING MEANS, ...........180/271+
  SEATS .............................297
     CRASH ..........................297/216.1+
     DESIGN .........................D06/334+
     WITH BODY MODIFICATION .........296/63+
  SHIPPED AS FREIGHT ................410/4+
     GROUP OF BODIES SHIPPED ........410/43
  SIGNALS ...........................116/28.R+
     ELECTRIC .......................340/425.5+
     LAMP SUPPLY SYSTEMS ............315/77+
     STOP ELECTRIC ..................340/479+
  SIMULATORS ........................434/65+
  STEERING POST OR WHEEL
     FLUID HANDLING .................137/352
     LOCK FOR PILOT WHEEL CONTROL OR 70/253
       LINKAGE ......................70/253
  SUSPENSION SYSTEMS ................280/688+
     STUB AXLE MOUNTS ...............280/660+
  TAILPIPE MUFFLER ..................181/227
     WITH EXHAUST PIPE ..............181/228
  TAPE STORAGE FOR CARS .............D03/35
  TOY ...............................446/431+
     SOUNDING .......................446/409+
  TRANSMISSION JACK .................254/DIG.16
  TRUNK LIGHT .......................362/61+
     SWITCH .........................20/61.62+
  TURNTABLES ........................104/44
  VENTILATION .......................454/69+
  WHEELS AND AXLES FOR LAND VEHICLES 301
     ALIGNING TOOLS, HAND ...........29/273
     LOCK FOR SPARE OR MOUNTED WHEEL 70/259
  WINDOW DEFROSTING SEE WINDOW ......52/171+

AUTOPHON ............................ 84/83+

AUTOSYN (SEE SELSYN)

AVERAGING, AROMATIC HYDROCARBON       585/474
 SYNTHESIS ..........................585/474

AVIARIES SEE BIRD

AWAKENER
  BEDSTEAD RELATED ..................5/131+
  CLOCK .............................368/12
     ALARM ..........................368/244+
  PERSON CONTACTING .................116/205
     TIME OPERATED ..................368/12
  TIME ALARM EXCEPT CLOCK ...........111/91+
     ELECTRIC .......................340/309.15+


AWL ................................. D08/47
  LEATHER ...........................30/366
  NEEDLES ...........................223/104
  PUNCH TYPE ........................30/366
  SEWING
     IMPLEMENT ......................112/169
     MACHINE ........................112/48
  SHOE MAKING .......................12/103
  SURGERY ...........................606/222+

AWNING .............................. 160/45+
  DESIGN, FABRIC TYPE ...............D25/57
  HEAD ROD BRACKET ..................248/273
  NON RIGID STRUCTURE ...............160/45+
     STORAGE OR SHIELD COMBINED .....160/22
  RIGID STRUCTURE ...................52/74+
     DESIGN .........................D25/57
  WINDOW CLOSING ....................49/71

AX .................................. 30/308.1+
  DESIGN ............................D08/76
  DIAPHRAGM .........................92/96+
  HOLDER ............................224/234
  MAKING
     BLANKS .........................76/103
     DIES ...........................72/470+
     MACHINES .......................76/7+
     PROCESSES ......................76/103
  RACK ..............................211/13+
  TYPE CUTLERY ......................30/318


AXLE
  BOX
     MANUFACTURE DIES FORGING .......72/356
     MANUFACTURE DIES FORGING
       RAILWAY CAR ..................72/343+
     RAILWAY CAR ....................29/168
     RAILWAY CAR MOUNTING ...........105/218.1+
     WHEEL COMBINED .................301/109+
  GAUGE .............................33/193
  HOUSINGS ..........................74/607
  LUBRICATING JACK ..................254/32
  MANUFACTURE
     ASSEMBLY OR DISASSEMBLY TOOLS ..29/700+
     BY METAL DEFORMING PROCESS .....72
     DIES FORGING RAILWAY CAR .......72/343+
     DIES FORGING VEHICLE ...........72/356+
     LATHES TURNING .................82/104+
  PULLER ............................29/244+
  RAILWAY ...........................295/36.1+
  REMOVING DEVICE ...................29/277
  RETHREADING DIES ..................408/20+
  RETHREADING DIES ..................408/22+
  SHAFTS ............................301/124.1+
  SKEIN .............................301/134+
  SPINDLE ...........................301/131+
  VEHICLE ...........................301/124.1+
     DESIGN .........................D12/160
  VEHICLE WHEEL COMBINED ............301/1+

AXMINSTER
  CARPET ............................139/399+
     MAKING APPARATUS ...............139/7.R+

AZAPORPHYRINS ....................... 540/121+

AZAURIDINE .......................... 536/28.3

AZEOTROPES .......................... 203/50+

AZETIDIDIONES ....................... 540/356

AZETIDINES .......................... 548/950+

AZETIDINONES ........................ 540/200+

AZIDES .............................. 423
  INORGANIC METAL AZIDES ............149/35
     EXPLOSIVE OR THERMIC CONTAINING 149/35
  ORGANIC RADICAL CONTAINING ........552/1+

AZIDOCILLIN ......................... 540/331

AZIMUTH INSTRUMENT
  AMMUNITION ........................102/372
  HORIZONTAL AND VERTICAL ANGLE .....33/281
  HORIZONTAL ANGLE ..................33/285
  OPTICAL ...........................356/138+
  SOLAR LOCATING ....................33/268+
  TELESCOPE .........................359/399+

AZINES .............................. 544/1+
  AZINES ............................564/249
  AZO COMPOUNDS .....................534/751+
     HEAVY METAL CONTAINING .........534/701+

AZIRIDINES .......................... 548/954+


AZO COMPOUNDS ....................... 534/573+
  ANTHRAQUINONE CONTAINING ..........534/654+
  DYE COMPOSITIONS CONTAINING .......8/662+
     SEVERAL DYES ...................8/639+
     TEXTILE PRINTING ...............8/445+
  FIBER-REACTIVE ....................534/617+
  INDANE CONTAINING .................534/659
  QUATERNARY AMMONIUM CTG ...........534/603+
  RESORCINOL CONTAINING .............534/682+
  SALICYLIC ACID CONTAINING .........534/660+
  STILBENE CONTAINING ...............534/689+

AZOLES .............................. 548/100+
  ACRIDINE NUCLEUS CONTAINING .......546/26+
  ALUMINUM CONTAINING ...............548/101+
  ARSENIC CONTAINING ................548/102
  AZO COMPOUNDS .....................534/769+
     HEAVY METAL CONTAINING .........534/710+
  BORON CONTAINING ..................548/110
  HEAVY METAL CONTAINING ............548/101+
  PHOSPHORUS CONTAINING .............548/111+
  SILICON CONTAINING ................548/110

AZOMETHINE .......................... 564/271+
  BENZOSELENAZOLES ..................548/121
  BENZOTHIAZOLES ....................548/152
  BENZOXAZOLES ......................548/219
  HEAVY METAL CONTAINING ............556/32+
  PYRIDINES .........................546/268
  QUINOLINES ........................546/152

AZOXY COMPOUND ...................... 534/566+