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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classes of the form Dxx.yy) are not retreivable.
Class Number: 473 Class Title: AMUSEMENT DEVICES: GAMES Subclass Subclass Number Title 1 BILLIARDS OR POOL 2 .Practice device or device to aid in aiming cue or cue ball during shots (e.g., to assist in bank shots, etc.) 3 .Adapted to be played on floor, ground, or court 4 .Table or gameboard 5 ..With mechanical ball projector 6 ..Convertible between billiard and pool (i.e., between pocketed and nonpocketed) 7 ...Using pocket blocking device positionable only in vicinity of pocket (e.g., pocket plug, rail piece, etc.) 8 ...Using interchangeable, shiftable, reversible, or removable cushion rails 9 ...Invertible playing surface 10 ..Convertible to another type of furniture or to different type of game playing surface 11 ...Rail vertically raised or lowered relative to bed 12 ...Vertically movable playing surface 13 ...Detachable or hinged rail 14 ...Convertible to different type of game playing surface 15 ..Readily foldable or collapsible 16 ..Rotatable playing surface 17 ..Having pocket or other target with ball actuated indicator 18 ..Playing surface having unconventional peripheral configuration defined by the carom rails 19 ..Attachment or accessory providing plural pockets or other targets located at only one end of playing surface 20 ..Playing surface having unconventional number, entrance opening, or arrange ment of pockets or having additional or shiftable carom or bumper means thereon 21 ..Table attached ball rack 22 ...With conveying chutes interconnecting pockets with ball rack 23 ....With means to distinguish or identify each ball pocketed 24 ....Coin controlled 25 ....With means to separate or segregate store balls pocketed by each player or team 26 ....Ball rack also constitutes or includes spotting rack 27 ..With means to prevent unauthorized use of table or to limit playing time or number of games played 28 ..Pocket structure 29 ..Playing surface structure (i.e., bed structure) 30 ...Device for securing playing surface covering (e.g., for securing billiard table cloth, etc.) 31 ..Rail structure 32 ...Cushioned portion thereof 33 ..Frame or leg structure 34 ..Dust cover therefor 35 .Cue chalker 36 ..Chalk holder 37 ...With means for automatically applying chalk 38 ...Flexibly tethered 39 ...Secured to generally fixed support 40 .Ball spotting rackk 41 ..With ball carrying or storage means 42 .Cue rest 43 ..Hand attached or engaged by hand in vicinity of cue supporting portion 44 .Cue 45 ..Mechanically operated 46 ..Disparate attachment therefor or convertible to or combined with disparate device 47 ..With user adjustable or changeable weight 48 ..Axially telescopic 49 ..Tip or tip fastener therefor 50 ...Clamp or press 51 ...Striking portion formed of material other than leather 52 .Ball 53 ..Having characteristic enabling ball to be mechanically separated from other balls 54 BOWLING 55 .Practice or assist device 56 ..For handicapped person 57 ..Selective pin setter 58 ..Ball path indicator 59 ..Bowler worn or carried 60 ...Including means for positive engagement with ball 61 ...Finger support or guide 62 ...Wrist support or guide 63 ...Arm or elbow support or guide 64 .Handling of pin or pin representation 65 ..Including electrical cycle sequence control 66 ..Including means for conserving energy 67 ..With indicator 68 ...Tethered or pivotal pin 69 ...Pinfall 70 ....Score 71 .....Including electromechanical calculating means 72 ...Foul 73 ..Pin setter 74 ...Rollable, translatable, or simulative target 75 ...Pivotal pin 76 ....Pivot substantially at base of pin 77 ....With spring detent 78 ...Tethered pin 79 ....Tethered at base of pin 80 .....Including reset lever or crank 81 ....Including means to remove dead wood 82 .....Pin biased away from bed 83 ...Manually loadable 84 ....Including means to upright pin 85 ...Magnetic force acts on pin 86 ...For alternative pin sets 87 ...Including means to lift live wood 88 ....With compensation for pin offset 89 ...Including distributor 90 ....Including means to convey pin to distributor 91 .....Including elevator 92 ..With compensation for pin offset 93 ..Pit cushion or actuator therefor 94 ..Pin guide or conveyor 95 ...Distributorr 96 ....Pivotable chute or conveyor 97 ...Elevator 98 ....With ball separator 99 ...And ball handling 100 ...Sweep 101 ..Pin sensor 102 ..Pin spot 103 ...Including means for positive pin alignment 104 ....Retractable peg 105 ....Socket-type 106 .Ball handling or diverting means 107 ..Mechanical projector 108 ..Tethered ball 109 ..Means to change or curve ball path 110 ..Ball return 111 ...Ball lift or elevator 112 ...Mechanical means for ball retarding or arresting 113 ..Gutter structure 114 ..Backstop, division board, or adjunct therefor 115 .Alley or board structure 116 ..Portable game board, table, or alley 117 ..With nonwooden alley surface or lining 118 .Pin 119 ..Composite structure (e.g., distinct layers, components, joint, etc.) 120 ...With reinforcing filament, fiber, or fabric 121 ...With metal shell or skin 122 ...With wooden component 123 ....Laminated or attached wooden components 124 ....With end or bottom reinforcing preform 125 .Ball 126 ..With weight block 127 ..With specific grip means 128 ...Thumb or finger hole grip 129 ....Size or depth adjusting means 130 ....Removable insert or bushing * UNTIL CLASS 273 HAS BEEN COMPLETELY RECLASSIFIED AND ALL OF THE SUBJECT MATTER THEREOF INCORPORATED INTO THIS, ITS REPLACEMENT CLASS, CLASS 273 IS TO BE CONSIDERED AN INTEGRAL PART OF CLASS 473 AS SHOWN BY THE POSITION OF THIS BOX