What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
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363-131 121-55A 14-.5
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Class Number: 472 Class Title: AMUSEMENT DEVICES Subclass Subclass Number Title 1 ROUNDABOUT 2 .With structure for causing reciprocal translation of roundabout along vertical path (e.g., elevator, etc.) 3 .Having feature for facilitating transport by vehicle structure 4 .And occupant propelled seesaw 5 ..Seesaw operated drive structure helps maintain roundabout motion 6 .Powered toy type 7 ..Having article completely supported by rotating tether, arm, or suspending structure 8 ...Article carried propulsion means 9 ....Having altitude control structure 10 ....Electric motor 11 ...Having altitude control structure 12 ..Article travels over stationary track or platform 13 .Marine 14 .Occupant propelled 15 ..Trainer for foot travel (e.g., for walking, skating, etc.) 16 ..Having carrier rotating about horizontal axis 17 ...And orthoganal axis intersecting therewith 18 ..Having carrier rotating about stationary inclined axis 19 ..By roundabout mounted drive structure used to maintain motion 20 ...Occupant support pivotally suspended from above 21 ...Occupant bearing travel wheel driven by crank structure (e.g., pedaled cycle, etc.) 22 ...Endless belt or chain 23 ...Ratchet 24 ...Cooperating gears 25 ..Having hemispherically shaped base 26 ..Having traveling wheel or roll 27 .Having occupant or article carriage mounted propulsion means 28 .Having freely moving occupant or article carriage on turning platform 29 .Having carrier rotating about vertical axis (e.g., merry-go-round, etc.) 30 ..And about horizontal axis (e.g., turntable supported ferris wheel, etc.) 31 ..About plural discrete, vertical axes 32 ..Suspended occupant or article carriage type 33 ...Circularly traveling, centrifugal swing 34 ...Carriage moves repeatedly up and down 35 ...Rotating platform 36 ..Using individual occupant or article carriage to ride on stationary track or platform 37 ...Vertically undulating track or platform 38 ...Outwardly varying path 39 ..Using cantilevered arm arrangement to repeatedly move occupant or article up and down 40 ..Disk, ring, or bowl 41 ...Concentric arrangement 42 ...Employing occupant or article carriage moving repeatedly up and downn 43 .Occupant or article carriage follows stationary, horizontally winding, track or platform 44 .Having carrier rotating about horizontal axis 45 ..Having suspended occupant or article carriage (e.g., ferris wheel, etc.) 46 ...About plural discrete, horizontal axes 47 .Having carrier rotating about an axis having varying angular orientation 48 WALKWAY HAVING MOVABLE FLOOR OR STAIR STEP 49 PARACHUTE-DROP SIMULATOR 50 HAVING TRIP-RELEASE SUPPORTING PERSON AGAINST GRAVITY 51 FOR PERPETRATING PRACTICAL JOKE OR INITIATION CEREMONY 52 .Unexpectedly expels fluid or powder (e.g., into face of victim, etc.) 53 ..And produces unexpected noise 54 .Unexpectedly falls apart or projects movable or free part 55 ..User contacted by attached projected part 56 .Produces unexpected noise, vibration, or electric shock 57 ILLUSION OR STAGE DEVICE 58 .Alternative scenes provided by reflection from and transmission through transparent mirror 59 .Person experiences illusion of being in motion (e.g., travel simulation, etc.) 60 ..By use of video or projected picture 61 .Illusion caused by video, projected picture, or special light effect 62 .Maze or labyrinth 63 .Illusion caused by mirror 64 .Illusion caused by sound imitation or effect 65 .Illusion caused by visual imitation of event occurring in nature (e.g., rain, snow, fire, etc.) 66 .Pyrotechnic display 67 .Simulation of self-propelled object in liquid filled container (e.g., Cartesian diver) 68 .Illusion caused by apparent levitation 69 .Illusion caused by apparent penetration or severance 70 .Illusion caused by simulation of or attachment to human body part 71 .Illusion caused by apparent appearance or disappearance 72 .Illusion caused by apparent change in color, printed matter, surface texture, or rigidity 73 .Card trick illusion 74 .Illusion caused by abnormal interior building structure appearing normal 75 .Stage apparatus or setting 76 ..Having rapid movement 77 ..Shifting scenery or curtain 78 ...Hoisting apparatus 79 ...Guide, brace, or clip 80 ..Aerial suspension device 81 ..Prop 82 ...Tank 83 ...Simulates vehicle 84 ...Simulates animal 85 RACETRACK 86 .For nonhuman animal (e.g., horse racetrack, etc.) 87 ..For dog 88 SURFACE FOR WHEELED OR GLIDING VEHICLEE 89 .For wheeled vehicle (e.g., for bicycle, roller skate, etc.) 90 .For foot-attached gliding vehicle (e.g., ski slide, ice skating surface, etc.) 91 ..Surface moves as a whole or comprises rotatable or rollable elements 92 SURFACE OR ENCLOSURE FOR ATHLETIC OR EXHIBITION EVENT (E.G., ARENA, TRACK, COURT, PLAYING FIELD, ETC.) 93 .Fight ring 94 .Walled enclosure (e.g., racquetball or paddle tennis court, etc.) 95 ROCKABLE ANIMAL SIMULATION HAVING RIDER SEAT MEANS (E.G., ROCKING HORSE, ETC.) 96 .With power or externally operated rocking means 97 ..Motor operated (e.g., mechanical bull, etc.) 98 .Having animal sound simulation 99 .Having relatively movable animal part 100 .Having safety feature 101 .Combined with disparate device 102 .Having arcuate rocking base 103 .Having spring support 104 ..Coiled type 105 ...Plural coiled springs 106 SEESAW 107 .Motor operated 108 .Foot, hand, or seat operated 109 .Having safety feature 110 .One person type 111 .Having horizontally maintained seat 112 .Having counterbalance means 113 .Spring assisted 114 .Having arcuate base 115 .Collapsible 116 BODY SLIDE 117 .Water slide 118 SWING 119 .Motor operated 120 .Having hand and foot operator 121 .Having hand operator 122 ..Cable grasp 123 ...Pulley mounted 124 .Having foot operator with separate suspender 125 .For plural occupants 126 SANDBOX TYPE 127 BODY-SUPPORTING SIMULATED LOG-ROLLING DEVICE (I.E., BIRLING DEVICE) 128 AQUATIC 129 .Body-supporting buoyant device 130 SIMULATES AIRCRAFT OR SPACE VEHICLE OR SIMULATES THE MOVEMENT THEREOF 131 OCCUPANT SUPPORT TRANSLATABLE ALONG VERTICAL PATH 132 OPERATED BY OR USING LIVE ANIMAL 133 BODY ATTACHED, WORN, OR CARRIED 134 INFLATABLE OR PNEUMATIC 135 OCCUPANT OPERATED ROCKING, OSCILLATING, OR BOUNCING DEVICE 136 BUILDING OR PART THEREOF 137 MISCELLANEOUS