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:


B NAPHTHOL .......................... 568/735+
  MONOAZO COMPOUNDS .................534/840+
  PREPARATION FROM ARYL HALIDES .....568/739

BABY
  BATH ..............................D23/278
  BOTTLE WARMER .....................126/261+
     CHEMICAL REACTION ..............126/263.R+
     ELECTRIC .......................219/429+
  CARRIAGE ..........................280/47.38+
     CONVERTIBLE TO CRADLE OR CRIB ..280/31
     FOLDING ........................280/639+
     MOSQUITO NETS AND CANOPIES .....5/416
     STEERING .......................280/47.11
  CHAIRS ............................297
     COMBINED WITH TABLE ............297/136+
     CONVERTIBLE HIGH AND LOW .......297/344.12+
  CRADLE ............................5/101+
  CRIBS .............................5/93.1+
  DIAPERS ...........................604/358+
     DESIGN .........................D24/126
  DOORWAY SAFETY GUARD ..............49/50+
     REMOVABLE ......................49/463+
  FENCES ............................256/24+
  FLATWARE FOR ......................D07/642+
  FOOD OR BOTTLE WARMER .............D07/326
  HARNESS (SEE DEFINITION NOTES) ....119/770
  HIGHCHAIR .........................D06/339
     TRAY ...........................D06/509
  INCUBATORS ........................60/22
  JUMPERS ...........................297/274+
  PACIFIER ..........................606/234+
     DESIGN .........................D24/194+
  PEN ...............................256/25
     WITH FLOOR .....................5/99.1
  PLAYPEN ...........................D06/331
  RATTLES ...........................446/419
     DESIGN .........................D21/65
  RUBBER PANTS ......................2/400+
     ABSORBENT PAD HOLDERS ..........604/393+
  SAFETY GARMENTS ...................128/869+
  SHOES BRONZING.....................205/159+
  TEETHING DEVICE ...................D24/194+
  TRAINING TOILET ...................D23/296+
  WALKER ............................280/87.51+
     VEHICLE ........................280/87.2
     WITH SEAT ......................297/5+


BACILLUS ............................ 435/832*
  HYDROLASE FROM ....................435/221+

BACITRACINS ......................... 530/320

BACK
  PAD HARNESS .......................54/66
  REST ..............................297/452.1+
     BED ............................5/624
     BOAT ...........................114/363
     DESIGN .........................D06/502
  SCRATCHER .........................128/62.R

BACKBAND       
  HARNESS ...........................54/4

BACKFIRE ............................ 261/DIG.6

BACKFIRE PREVENTER .................. 48/192

BACKGAMMON .......................... 273/248

BACKGROUNDS PHOTOGRAPHIC ............ 354/291

BACKING DENTAL 
  INSTRUMENT ........................433/141+
  MAKING ............................29/160.6
  METALWARE SHAPING .................72/54+


BACKLASH TAKE UP
  BETWEEN MESHING GEARS .............74/409
  PLANETARY GEARING .................475/346+
  SECTIONAL GEAR ....................74/440+
     MILLING WORK FEEDS .............409/146

BACKPACK ............................ 224/153+

BACKREST ............................ D06/502

BACKSET; ADJUSTABLE ................. 292/1.5

BACKSPACE ON TYPEWRITER ............. 40/308+

BACKSTAY ON CAR TOPS ................ 296/144

BACKSTOP       
  BASEBALL ..........................273/26.A
  PROJECTILE ........................273/410
  TARGET ............................273/404+

BACKUP AUTO LIGHTS .................. 362/257+

BACKWARD CHAINING ................... 395/52


BACKWASH       
  FILTER CLEANING ...................210/108
  FILTER WITH .......................210/333.1
  FLUID CLEANING AIRPUMP ............210/411
  IN MULTI-WAY VALVE ................210/425
  SAND BED WITH REHABILITATION MEANS 210/275+
  WITH ADDITIONAL CLEANER ...........210/393

BACON ............................... 426/645
  PACKAGING .........................53/DIG.1
  PRESERVATION ......................426/332

BACTERIA ............................ 435
  FERTILIZER PREPARATION WITH .......71/6+
  HAZARDOUS OR TOXIC WASTE
     CONTAINMENT ....................588
  LIQUID PURIFICATION BY ............210/601+
  VIRUS CULTURE ON ..................435/235.1+

BACTERICIDAL   
  COMPOSITIONS ......................424

BACTERIOPHAGE ....................... 435/235.1+
  MEASURING OR TESTING ..............435/5

BACTERIOSTATIC 
  COMPOSITIONS ......................424

BADGE ............................... 40/1.5+
  DESIGN ............................D11/95+
  FILM RADIOACTIVITY ................250/475.2
  FILM RADIOACTIVITY ................250/472.1


BADMINTON SEE TENNIS ................ 273/411
  RACKETS ...........................273/67.R

BAFFLE (SEE PROCESS OR MACHINE
 WITH WHICH ASSOCIATED) .............416
  ACOUSTICAL MUFFLER
     STRUCTURE PER SE ...............181/264+
  ACOUSTICAL MUFFLER WITH ...........181/264+
  AMALGAMATOR AGITATOR ..............209/187
  ANIMAL MUZZLE .....................119/831+
  CLEANING AND LIQUID CONTACT WITH
     SOLIDS .........................134/182
  DECANTER ..........................210/513+
  DIVERSE SEPARATORS ................210/294+
  DROP WATER ........................122/188
  FIRE TUBE BOILERS .................122/44.1+
  FUEL ..............................122/503
  FURNACE ...........................110/322+
  LOUD SPEAKER ......................181/175+
  MERCURY COATED FOR AMALGAMATING ...209/54
  PARTICULATE MATERIAL SEPARATORS ...210/285+
  PIPE AND TUBE .....................138/37+
  RAILWAY DUMPING CAR ...............105/279
  TANK GAS AND LIQUID CONTACT .......261/123
  TOWER GAS AND LIQUID CONTACT ......261/108+
  TURBINE STATOR ....................415/148+
  VANE ..............................415/208.1+
  VEHICLE BODY TOP BOARD ............296/33
  WATER TUBE BOILER .................122/235.17+


BAG (SEE POUCH; RECEPTACLE; SACK)    
  ABRADING MATERIAL FILLED ..........51/294
  AIRSHIP GAS CELL CONSTRUCTION AND
     ARRANGEMENT ....................244/128
  BALLOONS ..........................244/31+
     INFLATION ......................244/98
  BELT OR BODY ATTACHED .............224/205
     STRAPS CRISSCROSS SHOULDERS ....224/209+
     THEFT OR LOSS RESISTANT ........150/102
  BLOOD .............................604/403
  BRIEF BAG OR CASE .................190/900*
  CLOSURES ..........................383/42+
  CLOTHESPIN  
     DESIGN .........................D32/36
     PACKAGE ........................D09/305
  COLOSTOMY .........................604/338+
  EXPLOSIVE POWDER ..................102/282
  FABRIC ............................139/389+
  FASTENER ..........................24/30.5R+
     SHIRRING CORD ..................383/72
     TRAVELING BAG HANDLE ...........16/110.R
  FEED ..............................119/65+
  FLEXIBLE ..........................383
     CLOSURES .......................383/42
  FOUNTAIN SYRINGE WITH TUBING ......206/69
  GARMENT ...........................206/278
  GAS SEPARATOR .....................55/361+
  GOLF ..............................206/315.3
  HOLDER ............................248/95+
     SORTING RACKS AS FOR MAIL BAGS .211/12
  HOT WATER .........................383/901*
  ICE ...............................383/901*
  INFLATABLE FOR RAISING VESSELS ....114/54
  LOCKS FOR .........................70/64+
  MOUTH SUPPORT .....................141/391
  PAPER
     CLOSURES .......................383/42+
     MAKING OF BAG ..................493/186+
     OPENING ........................383/35+
       TEARING, PIERCING, ETC .......383/200+
  POCKETBOOK ........................150/100+
     CLOSURES .......................150/118+
  SADDLEBAG .........................224/191+
  SEWING MACHINE ....................112/10
     FILLED BAGS ....................112/11
     FILLING AND CLOSING ............53/266.1
  SLEEPING ..........................2/69.5
     WITH BED STRUCTURE .............5/413
  STRIKING OR PUNCHING ..............482/86+
  TEA OR COFFEE .....................426/77
  TRAVELING .........................206/278+
     DESIGN .........................D03/30.1+
  TURNER OR REVERSER ................223/39+
  WHEELED TRAVELING .................280/37


BAGASSE FURNACE ..................... 110/235+

BAGGAGE ............................. 190
  CARS ..............................105/355+
  DESIGN ............................D03/30.1+
  IDENTIFICATION TAGS ...............40/6
  RACK ON VEHICLE, ILLUMINATION .....362/73
  SAMPLE CASE WITH TERRACED TRAYS ...190/16
  SUPPORTS ..........................190/18.R
  TRUNKS ............................190/19+
  VEHICLE ATTACHED CARRIER ..........224/273+
  WHEELED ...........................280/29+
  WITH PICNIC OR LUNCH UNIT .........190/12.R

BAIL
  APPLYING TO PAPER BAG .............493/88
  EAR
     METALLIC RECEPTACLE ............220/773+
     WOODEN BUCKET ..................217/126
  HANDLE
     BASKET .........................217/125
     LANTERN ........................362/399
     METALLIC RECEPTACLE ............220/773+
  MAKING OR FORMING WIRE ............140/75
  RAILWAY COUPLING LINK .............213/75.R+

BAILER
  CISTERN ...........................294/68.22+
  HOISTING BUCKET TYPE ..............294/68.22+
  WELL ..............................166/162+

BAIT
  ANIMAL FOOD AND PREPARATION .......426/1
  FOOD WITH POISON ..................424/410
  GLASS DRAWING .....................65/352+
  HOLDER ............................43/55
  POISON ............................424/84


BAKED PRODUCTS ...................... 426/549+
  DESIGN ............................D01

BAKELITE T M ........................ 528/129

BAKER AND BAKERY
  OVENS .............................432/120+
  PEELS .............................294/49
  PRODUCTS ..........................D01

BAKING
  MOLDS .............................99/372+
  OVENS DOMESTIC ....................126/273.R+
  PANS ..............................220

BALANCED TO UNBALANCED    
  COUPLING NETWORK WITH FREQUENCY
     CHARACTERISTIC .................333/25
  IN AMPLIFIER STAGE ................330/116
  POWDER ............................426/562+
  WITH PHASE INVERTER ...............330/116

BALANCER ............................ D10/82
  BALANCING METHOD ..................29/901*
  BEAM SCALES .......................177/246+
  EQUAL ARM WEIGHER .................177/190+
  HOROLOGY ..........................368/169+
     MAKING .........................29/178
  SASH ..............................16/193+


BALANCING MACHINE PARTS SEE
 COUNTERBALANCE
  COMMINUTING ELEMENTS COMBINED .....241/292
  DETERMINING BALANCE BY COMPUTER ...364/463
  FLYWHEELS AND ROTORS COMBINED .....74/573.R
  GRINDSTONE WEIGHTS ................51/169
  INSTRUMENT CALIBRATING ............73/1.R+
  ROTOR UNBALANCE TESTING ...........73/66
  WEIGHTS FOR LAND WHEEL ............301/5.21+
  WHEELS VEHICLE ....................301/5.21+

BALATA (SEE RUBBER)

BALCONIES ........................... 52/73
  WINDOW CONNECTED ..................182/53+

BALE
  BAND TIGHTENER AND TWISTER ........140/93.2+
     PORTABLE & DETACHABLE TENSIONER 254/199+
     TIGHTENER AND SEALER ...........140/150+
  GRAPPLING HOOKS ...................294/26
  ROUND HAY BALE HANDLING ...........414/24.5
  TIE ...............................24/16.R+
     DESIGN .........................D08/394+
     MAKING .........................140/73

BALING .............................. 10
  SOLID RADIOACTIVE WASTE ...........976/DIG.398+



BALL
  AMUSEMENT DEVICES .................273/58.R+
     DESIGN .........................D21/204+
  AND SOCKET JOINTS SEE JOINTS
     BEARING FOR TYPEWRITER TYPE BAR 40/447
     DENTAL TOOL SUPPORT ............433/64
     VEHICLE STEERING MECHANISM .....180/258
  BASEBALL CURVERS ..................273/28
  BEARING     
     HINGE ..........................16/275+
     INKING MECHANISM ...............40/270.2
     MAKING .........................29/898.6+
     MOUNTING FOR BALL TOOL .........401/212
     RADIAL .........................384/452+
     RETAINER DESIGN ................D15/143
     THRUST .........................384/590+
  BILLIARD BALL SPOTTING RACKS ......473/40+
  BOWLING ...........................473/125+
     BALL GAUGE .....................33/509+
     BALL RETURN ....................473/110+
     GRIP TESTING ...................33/510
  CALCULATOR ........................235/68
  CARRIERS ..........................224/919*
     BY HAND ........................294/137+
  CASH REGISTER CHECK ...............235/18
  CHASER GRINDER
     FRICTIONALLY DRIVEN ............241/103+
     LOOSE BALL .....................241/173+
  CLOCK PENDULUM ....................368/179
  COCKS TOILET TANK .................137/409+
  GAMES .............................273/118.R+
  GOLF BALL MAKING ..................156/146
     DESIGN .........................D21/204+
  MAKING ............................29/899+
     ABRADING PROCESSES .............51/289.S
     GLASS ..........................65/21.1+
     HOLLOW METAL SPHERES ...........72/348
     LAMINATING .....................156
     SPHEROID WINDING ...............242/3
     WINDING ........................242/2
     WOODEN BALLS ...................142/1
  MILL ..............................241/170+
  POINT PEN .........................401/209+
  POINT STYLUS ......................81/9.2
  RACKS .............................211/14+
     POOL TABLE ATTACHED ............473/21+
  SPORT OR GAME BALLS ...............273/58.R+
  TEA ...............................426/77+
     RECEPTACLE TYPE ................99/323
  TETHERED BOWLING BALL .............473/108
  TIME BALLS ........................116/200


BALL COCK ........................... 137/409

BALLAST
  AIRCRAFT ..........................244/93+
  CLEANING    
     EXCAVATING COMBINED ............171/16
     LOOSE MATERIAL SEPARATION ......209
     RAILWAY GRADING COMBINED .......37/104
  RESISTOR ..........................338/20+
  SHIP ..............................114/121+
  TAMPER ............................104/10+

BALLERS ............................. 425/332+
  KITCHEN HAND TOOL .................D07/681

BALLOON
  AIRCRAFT ..........................244/31+
  BARRAGE, ANTIAIRCRAFT .............89/36.16
     AERIAL MINE CARRYING ...........102/409
  MONTGOLFIER TYPE ..................244/31+
  PYROTECHNIC DEVICE COMBINED .......102/356
  RAILWAY CAR ATTACHED ..............104/22
  ROCKET COMBINED ...................102/347
  SUPPORT WITH ANTENNA ..............343/706
  TOY ...............................446/220+
     DESIGN .........................D21/84

BALLOT .............................. 283/5
  BOX ...............................232/2+
     REGISTERING ....................235/57
  COUNTING OR VOTING MACHINE ........235/51+
  MARKING, TEACHING .................434/306

BALUSTER ............................ 52/720

BALUSTRADE .......................... 256/59+

BAMBOO SEAT ......................... D06/369

BANANA
  BANANA PLUGS ELECTRIC .............439/825+
     INSULATED ......................439/625+

BAND
  ENDLESS BAND CUTTING ..............83/935*
  INSTRUMENTS .......................84/1+
     LESSONS ........................84/470.R+
  SAW ...............................83/788+
  SAW ...............................30/380
     BLADES .........................83/835+
  SPREADING IN RADIO TUNER ..........334
     FILTER .........................333/167+
  USING DISTRIBUTED IMPEDANCE ONLY ..333/219+

BAND WIDTH     
  REDUCTION SYSTEM
     FACSIMILE ......................358/426+
     MULTIPLEX ......................370/118
     PULSE OR DIGITAL COMMUNICATIONS 375/122
     RADIO ..........................455/72
     RECORDING ......................369/60
       MAGNETIC .....................360/8+
     SPEECH .........................381/29+
     TELEVISION .....................358/133+
  REGULATOR   
     AMPLITUDE MODULATION ...........332/159
     FREQUENCY MODULATION ...........332/123
     PULSE MODULATION ...............332/107


BANDAGE ............................. D24/189
  BODY TREATING .....................604/304+
  CONTROLLED RELEASE OF MEDICATION ..604/890.1+
  ELECTRIC ..........................602/2
  PACKAGE FOR COILED TYPE ...........206/389+
  SCISSORS ..........................30/286
  SPLINTS ...........................602/4
  SURGICAL ..........................602/41+
     APPLICATION ....................602/1+
  TIRE PATCHES ......................152/371+
  WEBBING ...........................602/42
  WINDING ...........................242/60

BANDING
  BALE ..............................10/1+
  BOX COVERING ......................493/111+
  BRUSH BROOM AND MOP MAKING ........30/15
  HAT MAKING ........................223/22
  LABEL PASTING AND PAPER HANGING ...156
  PAPER BUNCH .......................493/386+

BANDOLEER ........................... 224/203

BANDSAW ............................. 30/380

BANISTER ............................ 256/59+

BANJO ............................... 84/269+
  CLOCKS ............................368/229

BANKING, AIRCRAFT CONTROL ........... 244/75.R+


BANKS & BANKING
  BURGLAR TRAPS .....................43/59
  CHECKS AND DEPOSIT SLIPS ..........283/57+
  COIN HANDLING .....................453
  DEPOSIT APPARATUS .................D99/34+
  DEPOSITORY ........................D99/43
  DEPOSITORY WITH VERIFICATION MEANS 109/24.1
     PHOTOGRAPHIC OR MICROFILMING ...346/22
     TIME RECORD-MARKING ............346/22
  INDICATOR FOR DEGREE OF ...........33/328+
  MANIFOLDING FORM-BOOK TYPE ........462/53
  PIGGY BANK ........................D99/35+
  PROTECTION DEVICES ................109/2+
  SAFES .............................109
  TOY ...............................446/8+

BANNERS
  FLAG TYPE .........................116/173+
     DESIGN .........................D11/165+
  ROD ...............................D11/181+
  SIGN TYPE .........................40

BAPTISMAL FONT ...................... D99/25


BAR (SEE ROD)  
  BORING ............................408/199+
  COUNTERS ..........................312/140.1+
  CROW ..............................254/120
  HORSESHOE BLANK ...................59/62+
  LINGUAL ...........................433/190
  MANUFACTURE (SEE PARTICULAR OPERATION)
     COMPOUND METAL BARS ............228/4.1+
     DRAWING ........................72/274+
     EXTRUDING METAL ................72/253.1+
       INDIRECTLY ...................72/273.5
     HORSESHOE BLANK ROLLING ........59/63+
     JUXTAPOSE AND BOND METAL BARS ..228/101+
     ROLLING ........................72/199+
  MASONRY REINFORCING ...............52/720+
  METAL SHAPE .......................428/544+
     DESIGN .........................D25/119+
  METALLIC PLURAL LAYERS ............428/615+
  MINING BAR CUTTER .................299/79+
  NEEDLE FOR SEWING MACHINE .........112/222
  SASH BAR ..........................52/777+
  SPLICE RAIL JOINT .................238/243+
     INSULATED ......................238/159+
  TOWEL .............................211/105.1+
  TYPE PRINTING .....................101/401.1
     FORMING MACHINES ...............101/401.6
     PROCESSES OF FORMING ...........101/401.4
  WRECKING ..........................254/120

BARB
  APPLYING TO WIRE, BARBING .........140/58+
  CUTTING FENCE BARBS ...............29/7.1
  FENCES ............................256/2+
  HAYFORK TYPE OF HARPOON HAVING ....294/127+
  NAILS HAVING BARBS ................411/456
  STAPLE BARBING ....................59/73+
  TAG FASTENER ......................40/669+
  WIRE ..............................140/59

BARBECUES ........................... 99/419+
  COOKER ............................D07/332+
  FORK ..............................30/322+
  TURNERS ...........................99/419+


BARBER
  CABINETS ..........................312/209
  CHAIRS ............................297/68+
     DESIGN .........................D06/334
  IMPLEMENT WITH LIGHT ..............362/115
  POLES .............................40/538
     DESIGN .........................D20/16
  TWEEZERS ..........................606/133

BARBITAL ............................ 544/307

BARBITURIC ACIDS .................... 544/299+
  IN DRUG ...........................514/270

BARGES .............................. 114/26+
  CRANES ............................212/190+

BARIUM
  ALKALI EARTH METAL ................23/304+
  NAPHTHENATE .......................562/511

BARK
  DEBARKING .........................144/340
  EXTRACT ...........................560/68+
     DESCALING AGENT CTG ............252/83+
  OSIER PEELERS .....................144/207
  ROSSING ...........................144/208.R
  STRIPPING MACHINE .................144/208.R
     BRANCHES .......................144/207

BARKHAUSEN KURZ OSCILLATOR .......... 331/92+

BARN ................................ 119/16


BAROMETER ........................... 73/384+
  DESIGN ............................D10/55

BAROMETRIC MATERIAL FEED  
  ANIMAL WATERING TROUGH ............119/77
  DISPENSER TRAP CHAMBER ............222/457
  GAS LIQUID CONTACT DEVICE .........261/73
  INKSTAND OR INKWELL ...............222/585+
  LIQUID LEVEL MISCELLANEOUS ........137/453+
  LUBRICATOR ........................184/84
  SUPPLY CONTAINER AND INDEPENDENT   401/120
     APPLICATOR .....................401/120


BARREL (SEE CASK; CONTAINER)
  BUNGS .............................217/98+
  CHARRING ..........................432/224
  CLEANING    
     BRUSHING IMPLEMENTS ............15/164+
     BRUSHING MACHINES ..............15/57+
     METHODS ........................134/22.1+
     WASHING APPARATUS ..............134/43+
     WIPERS .........................15/211+
  CLOSURES ..........................217/76+
  DESIGN, PACKAGE SIMULATES SHAPE ...D09/325
  DESIGN, SHIPPING ..................D34/39
  DRYING ............................34/104+
     METHODS ........................34/21
  ELECTROLYTIC APPARATUS ............204/213+
  FILLING ...........................141
  FIREARM ...........................42/76.1+
     BREECH HINGED ..................42/8
     FORWARD SLIDING ................42/10+
     MOVING AND RECOILING ...........89/160+
     MUZZLE LOADING .................42/51
     RECOILING WITH REVOLVING
       CHAMBERS .....................89/157
     REVOLVER HINGED ................42/63+
     SIDE SWINGING ..................42/12+
     STOCK FASTENINGS ...............42/75.1+
     SWINGING BARREL LOCKS ..........42/44+
  HEADS .............................217/76+
  INTERIOR ILLUMINATORS .............362/154
  LATERALLY DIRECTED     
     DROP BOMB ......................102/383
     SHELL ..........................102/383
  LIQUID LEVEL INDICATORS ...........73/290.R+
  MAKING ............................147
     SHEET METAL CONTAINER ..........413/1+
  METAL RECEPTACLE ..................220
  ORDNANCE ..........................89/14.5+
     MOVING AND RECOILING ...........89/160+
     PRACTICE .......................89/29
     RECOIL CHECKS ..................89/42.1+
  ORGANS ............................84/86
  PAPER RECEPTACLE ..................102/480
  PERISCOPE FOR EXAMINING INTERIOR ..359/402+
  PLUGS .............................217/110
     COLLAPSIBLE BULB ...............604/212+
  REMOVING BUNGS ....................137/324+
  SYRINGE PUMP HAND HELD ............604/187+
  TAPPING ...........................137/317+
     WITH CUTTER OR PUNCH ...........222/81+
  WATCH .............................368/142+
  WOODEN RECEPTACLE .................217/72+
     INSULATED ......................217/131


BARRETTE ............................ 132/278+
  DESIGN ............................D28/39+

BARRIER (SEE CEILING; FLOOR; GATE; WALL)
  BUILDING CONSTRUCTION .............52
     STATIC MOLD OR FORM FOR MAKING .249/18+
  FLIGHT DECK .......................244/110.R
     NEUTRON ........................376/287
     NEUTRON ........................250/518.1
     NEUTRON ........................376/347
  FLOATING ..........................405/63+
  IMPACT ABSORBING CLOSURE ..........49/9
  RACE TRACK ........................119/15.2
  RADIATION .........................250/505.1
  SOLID, FOR GAS SEPARATION .........96/4
  SUBTERRANEAN MOISTURE .............405/38

BARRIER LAYER  
  COATING ...........................437
     BY ELECTROLYSIS ................205/80+
  DRY RECTIFIER .....................257
     COMPOSITION ....................252/62.3R
     MANUFACTURE ....................29/25.2+
  ELECTROLYTIC CONDENSER OR
     RECTIFIER ......................361/500+
     ELECTROLYTE ....................252/62.2
     MANUFACTURE ....................29/25.1+
  MATERIAL P N TYPE .................148/33
     MAKING P N TYPE ................437

BARROW
  DUMPING ...........................298/2+
  HAND ..............................294/15+
  WHEEL .............................280/47.31

BASCULE BRIDGES ..................... 14/36+

BASE EXCHANGE  
  COMPOSITIONS ......................252/193
     WATER TREATING .................423+
  SILICATES .........................423
  WATER PURIFICATION ................210/660+
     APPARATUS ......................210/263+

BASEBALL ............................ 273/25+
  BALLS .............................273/60.R
  BATS ..............................273/72.R
  CARD OR TITLE GAMES ...............273/298
  COVER SEWING MACHINE ..............112/121.28
  GAME BOARD ........................D21/28
  GLOVE .............................2/19
     DESIGN .........................D29/21
  PROJECTOR .........................124
  SIMULATED GAME ....................273/88+

BASES (SEE FOUNDATION) .............. 248/346
  APPAREL APPARATUS .................223/120
  BED PLATE .........................52/292+
  COMPOSITIONS ......................252/193
  CURVED WALL .......................52/247
  DISPENSER SUPPORTS ................222/173+
  ELECTRIC LAMP .....................439/611+
  ELECTRIC SWITCH ...................20/293+
  FLATIRON ..........................248/117.2+
  INORGANIC .........................423
  LANTERNS AND LAMPS ................362/190
     AIR PREHEATING TYPE ............362/172
     CHIMNEY ........................362/314
     DESIGN .........................D26/93+
     SHADE ..........................362/441+
  MACHINERY .........................248/678
  ORGANIC ...........................260
  POLE ..............................52/292+
     CONCRETE TYPE ..................52/294+
  PROP AND BRACE ....................248/357+
  ROBOT .............................901*
  STAFF .............................248/519+
  STAND .............................248/188.1+
     SWINGING FOR MOVABLE RECEPTACLE 248/144
  VEHICLE RUNNER ....................280/28


BASIN SEE BOWL 
  AUXILIARY IN SHIP LIFTING LOCKS ...405/4+
  BATHTUB ...........................4/538+
     DESIGN .........................D23/284+
  CABINET COMBINED ..................312/228
  CANAL LOCKS .......................405/85+
  DISPENSER DRIP ....................222/108+
  DRINKING FOUNTAIN CATCH ...........239/28+
  FITTING FOR SINK OR BATH ..........4/696
  MODEL .............................73/148
  PLUMBING FOR SINK OR BATH .........4/679+
  RECEPTACLE TYPE ...................220
  SEWERAGE CATCH ....................210/532.1+
     GRATED INLET ...................210/163+
     WITH STRAINER ..................210/299+
  SINK ..............................4/619+
  SURGICAL RECEPTORS ................604/317+

BASKET (SEE CONTAINER; CREEL)
  CLOSURES ..........................217/124
  DESIGN ............................D11/143+
     CREEL ..........................D03/38
  ELECTROLYTIC CELL ELECTRODE .......204/259
  FLACCID MATERIAL ON FRAME .........220/9.1+
  FORMING ...........................147/48
  SKI POLE ..........................280/824
  WIRE ..............................220/485
  WOODEN ............................217/122+

BASKETBALL DEVICES .................. 273/1.5R
  BALLS .............................273/65.R
  TEACHING ..........................434/248

BASS
  BARS FOR VIOLIN ...................84/276
  DRUMS .............................84/411.R+
  FINDERS ...........................84/470.R+
  VIOLIN ............................84/274+
  VIOLS .............................84/274+

BASSINET ............................ D06/390

BASSOONS ............................ 84/380.R+

BASTING ............................. 99/345+
  BRUSH .............................D04/130

BAT SEE BATT   
  FORMING APPARATUS FOR HATS ........19/148
  GAME AND AMUSEMENT DEVICE .........273/67.R+
     BASEBALL .......................273/72.R
     DESIGN .........................D21/211+
  HARVESTING REEL ...................56/219+

BATCH CHARGER  
  FURNACE TYPE ......................414/167+
     GLASS FURNACE COMBINED .........65/335

BATCH MIXER    
  BREAD PASTRY AND CONFECTION .......366/69+
     BATCH FEEDER AND FURNACE .......65/335
  MORTAR ............................366/1+
  WITH HEAT EXCHANGER ...............165/109.1


BATH ................................ 4
  BIRD ..............................119/69.5
     DESIGN .........................D30/123
  BRUSH .............................D04/132
  CLOTH .............................D28/63
  DESIGN ............................D23/277+
  FUSED SALT ........................266/120
  HEATER ............................D23/318+
  MATERIAL SUPPLY COATED
     OR IMPREGNATED .................15/104.94
  MITT ..............................15/227
     DESIGN .........................D28/63
  PHOTOGRAPHIC SEE PHOTOGRAPHY
  QUENCH ............................266/130+
     SPONGES ........................15/244.1+
     WITH SOAP ......................401/201
  ROOM ACCESSORIES ..................D06/524
  SPONGES ...........................15/244.1+
     DESIGN .........................D28/63
     WITH SOAP ......................401/201
  STEAM OR SAUNA ....................D24/203
  THERAPEUTIC .......................607/81+
  TUB OR FOOTBATH, THERAPEUTIC ......D24/204+

BATHING
  GARMENTS ..........................2/67+
     BUOYANT ........................441/88+
     HAT ............................D02/867+
     SUIT ...........................D02/731+
     TRUNKS .........................D02/738+
  POOLS .............................4/488+
     SWIMMING POOL PURIFICATION .....210/169
  SHOES .............................36/8.1
     SANDALS ........................36/11.5
  SHOWER ............................4/596+
  SHOWER NOZZLES ....................239/548+
  TUBS ..............................4/538

BATHOMETER .......................... 73/300

BATHROOM
  DISINFECTION ......................4/222+
  FIXTURE LINERS ....................4/DIG.18
  PRISON BATHROOMS ..................4/DIG.15
  VENTILATION .......................4/209.R+


BATHTUB (SEE RECEPTACLES) ........... 4/538+
  ANTISLIP MAT ......................4/582
  DESIGN ............................D23/277+
  PLUMBING ..........................4/679+
  SEAT ..............................5/652+
  SOAP DISHES WITH SOAP HANDLING
     MEANS ..........................206/77.1
  SUPPORT ...........................4/571.1+
  THERAPEUTIC .......................607/81+

BATING .............................. 8/94.17
  FERMENTATIVE ......................435/265

BATISTE ............................. 139/426.R

BATON ............................... D21/100
  ILLUMINATED .......................362/102
  MUSIC CONDUCTORS TYPE .............84/477.B
  MUSIC CONDUCTORS TYPE .............984/258

BATT
  BONDING WITH ......................156/62.6+
  FORMING ARTICLES FROM .............264/116
  IMPREGNATION OF WORKPIECE BY ......264/136
  MECHANICAL MOLDING OF ARTICLE .....264/257
  MULTILAYER METAL RECEPTACLE WITH ..220/452
  SPECIAL PACKAGE FOR REEL OR ROLL ..206/417


BATTERY (SEE ELECTRET) .............. 136
  APPLICATIONS ......................136/291*
  ASSEMBLING COMPONENTS .............29/730+
     METHODS ........................29/623.1+
  BONDING APPARATUS .................228/58
  BONDING PROCESS ...................228/901*
  CABLE TERMINALS ...................429/179+
  CARRIER ...........................224/902*
     BY HAND ........................294/149+
     BY HAND ........................294/903*
  CASES .............................429/164+
  CHARGE INDICATOR ..................324/427+
     BATTERY ATTACHED ...............429/90+
  CHARGER ...........................320/2+
     DESIGN .........................D13/107+
     MATERIAL ELECTROLYTE ...........429/189+
     MATERIAL REGENERATING ..........429/17+
  CIRCUIT APPLICATIONS ..............136/293*
  CLAMPS FOR TERMINALS ..............439/754+
  DEFERRED ACTION ...................429/110+
  DEPOLARIZER .......................252
  DESIGN ............................D13+
  ELECTRO CHEMICAL ..................429
  ELECTRODE RECEPTACLE   
     CONDUCTING .....................429/239+
     NONCONDUCTING ..................429/235+
  ELECTROLYTIC CELL INTERNAL
     BATTERY ........................204/248+
  ELECTRONIC TUBE HAVING ............315/55
  FILLER ............................429/233
  FLASH LIGHTS USING ................362/157+
  GRID ..............................429/233+
     FILLING ........................141/32+
     MAKING .........................29/2
     PASTING ........................141/32+
  HANDLING HAND AND HOIST LINE
     IMPLEMENTS .....................294
  HOLDDOWNS, VEHICLE MOUNTED ........248/503+
  HOLDERS IN AUTOMOBILES ............180/68.5
  HYDROMETERS .......................429/90+
  INTERNAL OR ELECTROLYTIC
     CELL ...........................204/248+
     CLEANING PROCESS ...............204/144
     PROTECTING APPARATUS ...........204/197
     PROTECTING PROCESS .............204/148
     WATER TREATMENT ................204/150
  JAR ...............................429/163+
  METAL PLATEMAKING .................29/623.1
  MOTOR FED SYSTEMS .................318/139
  NUCLEAR ...........................310/301+
  PHOTOELECTRIC .....................136/243+
  PLATE FORMING .....................205/57+
  PLATE MAKING ......................29/2
  PLUGS .............................429/89
  PRIME MOVER DYNAMO PLANT WITH .....290/50
  RADIOISOTOPE-POWERED ..............136/202
  RADIOISOTOPE-POWERED ..............376/317
  RECEPTACLE ACIDPROOF ..............206/524.1+
  REGENERATING MATERIAL .............429/19+
  SEPARATOR .........................429/247+
  SOLAR CELL ........................136/243+
  SPACE SATELLITE APPLICATIONS ......136/292*
  STOPPERS ..........................429/89
  STORAGE ...........................429/149+
  SURGICAL APPLICATION ..............607/149+
  SWITCHES ..........................320/2+
  TERMINAL ..........................429/179+
     APPLYING OR REMOVING APPARATUS .29/246
     PROTECTOR ......................429/65
  TESTER ............................D10/77
  TESTING ...........................324/426+
     ACCESSORIES ....................429/90+
     CALIBRATING, TREATING, TESTING .136/290*
     CHARGING COMBINED ..............320/47
     HYDROMETER .....................73/441+
     INTEGRAL WITH BATTERY ..........429/90+
  THERMOELECTRIC ....................136/200+
  VENT CAPS .........................429/89+

BATTING ............................. 19/296
  PACKAGE FOR .......................206/389+

BATTLE LANTERNS
  FLASHLIGHT TYPE ...................362/157+

BAY WINDOW .......................... 52/201

BAYONET ............................. 30
  GUN COMBINED ......................42/86
  HOLDER ............................224/232+
  HOLDER ............................224/232
  JOINT (SEE JOINTS) ................362/35


BEACON
  AIRCRAFT ..........................362/262
     RADIO ..........................342/385+
  DIRECTIVE RADIO ...................342/350+
     ROTATING .......................342/398+
  FLOATING MARINE ...................441/1+
  ILLUMINATING LIGHTS ...............362/35
  RADAR TRANSPONDER .................342/42+
     I F F ..........................342/45
  SIGNAL LIGHTS .....................340
     AIR CRAFT ......................340/981+

BEAD AND BEADING
  ADSORBENT OR CATALYTIC ............502/527*
  BEAD CHAIN MAKING .................59/2
  GARMENT SUPPORTING ................2/300
  GLASS COMPOSITIONS ................501/33+
  GLASS MANUFACTURING ...............65/21.1+
     APPARATUS ......................65/142
  LATHING CORNER BEADS ..............52/255+
  METAL BEADING .....................72/67+
  METAL MOLDING OF ..................164/179
     CURVING AND ....................72/298+
     TUBE FORMING AND ...............72/149+
  METAL TUBE CORRUGATING ............72/367
  NECKLACE ..........................63/2
     DESIGN, STRUNG .................D11/11
  ROSARY ............................235/123
     DESIGN .........................D99/26
  SEWING ON WITH SEWING MACHINE .....112/104+
  SHOE
     HEEL BEADING MACHINES ..........12/49
     UPPER BEADING MACHINES .........12/57.1
  SPREADERS FOR TIRES ...............254/50.1+
     SPREAD HOLDERS .................81/15.3
     TIRE MOUNTING COMBINED .........157/1.17+
  STRINGING .........................223/48
     APPARATUS ......................29/241
     METHOD .........................29/433
  TIRE BEADS ........................152/539
  WINDOW BEAD FASTENERS .............16/220

BEAKERS SEE RECEPTACLES ............. 422/102
  DISPENSING ........................222/566+
     MOLTEN METAL ...................222/591+
  MEASURING .........................73/426+


BEAM
  BRAKE .............................188/219.1+
  DESIGN,ARCHITECTURAL ..............D25/126+
  I-SHAPED BEAM CUTTER ..............83/DIG.2
  LOCOMOTIVE TRUCK BUFFER ...........105/173
  MASONRY ...........................52/723
     MORTAR AND BLOCK ...............52/433
  METHOD ............................72/365.2
  PLOW ..............................172/681+
  POWER AMPLIFIER ...................313/299
     RECTIFIER ......................313/298
     WITH BEAM FORMING ELECTRODES ...313/299+
     WITH TWO CATHODES ..............313/5
  RAILROAD TIES I BEAM ..............238/65+
     TWO PART .......................238/57
  SCALES ............................177/246+
  STATIC MOLD .......................249/50
  SUPPORT FOR BRACKETS ..............248/228
     PIPE OR CABLE TYPE .............248/72

BEAM LEAD FRAME OR DEVICE STRUCTURE . 257/666+
  MAKING ............................29/827

BEAM-TRAMMEL DISTANCE DEVICE ........ 33/810+

BEAMING ............................. 28/190+

BEANS ............................... 426/629


BEARING (SEE JOURNAL) ............... 384
  BRASSES OR LININGS ................384/276+
  CLUTCH THROWOUT ...................192/110.B
  CONNECTING ROD ADJUSTABLE .........74/594
  DESIGN ............................D15/143
  FISHING REEL ......................242/320
  HYDROSTATIC BEARING WITH GEARING ..409/904*
  LATHE HEADSTOCK ...................82/148
  MANUFACTURE 
     ASSEMBLY APPARATUS ROLLER AND
       BEARING BALL .................29/724+
     PROCESSES ......................29/898+
       FLUID ........................29/898.2
       LINEAR .......................29/898.3
       ROTARY .......................29/898.4
       ROTARY ANTI-FRICTION .........29/898.6+
       ROTARY SELF ADJUSTING ........29/898.43+
       ROTARY SLEEVES AND BUSHINGS ..29/898.54+
       ROTARY THRUST ................29/898.41
     PROCESSES OF GRINDING ..........51/289.R+
  MATERIALS .........................252/12+
  PIANO PEDAL .......................84/228
  PULLERS ...........................29/244+
  RUDDER POST .......................114/169
  SEPARATOR, IMPERFORATE BOWL
     CENTRIFUGAL ....................494/83
  TESTING FRICTIONAL RESISTANCE .....73/9+
  TURNTABLE RAILWAY .................104/46
  TYPEWRITER BAR ....................40/448+
  TYPEWRITER CARRIAGE ...............40/354+
  WATCH AND CLOCK ...................368/324
  WRINGERS ..........................68/269.R

BEAT NOTE IN DETECTOR     
  AUTODYNE DETECTOR .................455/321+
  HETERODYNE DETECTOR ...............455/313+
  HOMODYNE ..........................455/324