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Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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You are viewing a USPC Schedule. |
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Class 123 | INTERNAL-COMBUSTION ENGINES |
Click here for a printable version of this file |
![]() | ![]() | 1R | MISCELLANEOUS |
![]() | ![]() | 2 | COMBINED DEVICES |
![]() | ![]() | 200 | ROTARY |
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![]() | ![]() | 18R | OSCILLATING PISTON |
![]() | ![]() | 19 | LIQUID PISTON |
![]() | ![]() | 21 | CONVERTIBLE CYCLE |
![]() | ![]() | 22 | INTERNAL COMBUSTION AND AIR |
![]() | ![]() | 23 | SOLID FUEL |
![]() | ![]() | 24R | GUNPOWDER |
![]() | ![]() | 25R | WATER AND HYDROCARBON |
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![]() | ![]() | 26 | ADDITIONAL AIR SUPPLY |
![]() | ![]() | 250 | ENGINE MEANS HAVING INTERNAL VAPORIZING IN PRECHAMBER WITH ALL COMBUSTION IN MAIN CHAMBER |
![]() | ![]() | 253 | PRECOMBUSTION AND MAIN COMBUSTION CHAMBERS IN SERIES |
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![]() | ![]() | 294 | COMBUSTION CHAMBER MEANS HAVING FUEL INJECTION ONLY |
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![]() | ![]() | 27R | BURNING BY HIGHLY COMPRESSED AIR |
![]() | ![]() | 27GE | ![]() |
![]() | ![]() | 27A | ![]() |
OIL ENGINES |
![]() | ![]() | 37 | MULTIPLE EXPLOSION |
![]() | ![]() | 38 | ATMOSPHERIC |
![]() | ![]() | 39 | NONCOMPRESSION |
![]() | ![]() | 41R | REVERSIBLE |
![]() | ![]() | 41.01 | COOLING |
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![]() | ![]() | 41.86 | CRANKCASE VENTILATION |
![]() | ![]() | 42 | OSCILLATING CYLINDER |
![]() | ![]() | 43R | ROTATING CYLINDER |
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![]() | ![]() | 45R | ROTARY RECIPROCATING PISTON |
![]() | ![]() | 46R | FREE PISTON |
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![]() | ![]() | 47R | VALVED PISTON |
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![]() | ![]() | 48R | ADJUSTABLE COMBUSTION CHAMBER |
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![]() | ![]() | 50R | RECIPROCATING CYLINDER |
![]() | ![]() | 51R | MULTIPLE PISTON, COMMON NONRESTRICTIVE COMBUSTION CHAMBER |
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![]() | ![]() | 52.1 | MULTIPLE CYLINDER |
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DOUBLE-ACTING |
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![]() | ![]() | 64 | SIX-CYCLE |
![]() | ![]() | 65R | TWO-CYCLE |
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![]() | ![]() | 306 | MEANS TO WHIRL FLUID BEFORE, UPON, OR AFTER ENTRY INTO COMBUSTION CHAMBER |
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![]() | ![]() | 310 | COMBUSTION CHAMBER HAVING MULTIPLE SPARK GAPS |
![]() | ![]() | 311 | FOUR-CYCLE |
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![]() | ![]() | 319 | ENGINE SPEED REGULATOR |
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![]() | ![]() | 406.11 | SPARK IGNITION TIMING CONTROL |
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![]() | ![]() | 429 | COMBUSTION CHAMBER MEANS COMBINED WITH AIR-FUEL MIXTURE FORMING MEANS |
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![]() | ![]() | 434 | CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) |
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![]() | ![]() | 594 | HIGH TENSION IGNITION SYSTEM |
![]() | ![]() | 595 | ![]() |
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![]() | ![]() | 655 | ![]() |
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![]() | ![]() | 90.1 | POPPET VALVE OPERATING MECHANISM |
![]() | ![]() | 90.11 | ![]() |
![]() | ![]() | 90.12 | ![]() |
![]() | ![]() | 90.14 | ![]() |
![]() | ![]() | 90.15 | ![]() |
![]() | ![]() | 90.19 | ![]() |
![]() | ![]() | 90.2 | ![]() |
![]() | ![]() | 90.21 | ![]() |
![]() | ![]() | 90.22 | ![]() |
![]() | ![]() | 90.24 | ![]() |
![]() | ![]() | 90.27 | ![]() |
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![]() | ![]() | 90.31 | ![]() |
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![]() | ![]() | 90.38 | ![]() |
![]() | ![]() | 90.39 | ![]() |
![]() | ![]() | 90.4 | ![]() |
![]() | ![]() | 90.41 | ![]() |
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![]() | ![]() | 90.5 | ![]() |
![]() | ![]() | 90.51 | ![]() |
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![]() | ![]() | 90.6 | ![]() |
![]() | ![]() | 90.61 | ![]() |
![]() | ![]() | 90.65 | ![]() |
![]() | ![]() | 143R | IGNITERS |
![]() | ![]() | 144 | ![]() |
![]() | ![]() | 145R | ![]() |
![]() | ![]() | 146.5R | ![]() |
![]() | ![]() | 147 | ![]() |
![]() | ![]() | 149R | ![]() |
![]() | ![]() | 149A | ![]() |
![]() | ![]() | 149B | ![]() |
![]() | ![]() | 149D | ![]() |
![]() | ![]() | 149E | ![]() |
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![]() | ![]() | 149H | ![]() |
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![]() | ![]() | 169R | ![]() |
![]() | ![]() | 169CL | ![]() |
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![]() | ![]() | 169DW | ![]() |
![]() | ![]() | 169EL | ![]() |
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![]() | ![]() | 169C | ![]() |
![]() | ![]() | 169E | ![]() |
![]() | ![]() | 169G | ![]() |
![]() | ![]() | 169P | ![]() |
![]() | ![]() | 169MG | ![]() |
![]() | ![]() | 169TC | ![]() |
![]() | ![]() | 169V | ![]() |
![]() | ![]() | 153 | ![]() |
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![]() | ![]() | 146.5A | ![]() |
![]() | ![]() | 146.5B | ![]() |
![]() | ![]() | 146.5C | ![]() |
![]() | ![]() | 146.5D | ![]() |
![]() | ![]() | 143A | ![]() |
![]() | ![]() | 143B | ![]() |
![]() | ![]() | 143C | ![]() |
![]() | ![]() | 192.1 | VIBRATION COMPENSATING DEVICE |
![]() | ![]() | 197.1 | TRANSMISSION MECHANISM FROM PISTON |
![]() | ![]() | 179.1 | STARTING DEVICE |
![]() | ![]() | 179.2 | ![]() |
![]() | ![]() | 179.3 | ![]() |
![]() | ![]() | 179.5 | ![]() |
![]() | ![]() | 179.6 | ![]() |
![]() | ![]() | 179.7 | ![]() |
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![]() | ![]() | 179.31 | ![]() |
![]() | ![]() | 183.1 | ![]() |
![]() | ![]() | 182.1 | ![]() |
![]() | ![]() | 179.25 | ![]() |
![]() | ![]() | 185.1 | ![]() |
![]() | ![]() | 185.14 | ![]() |
![]() | ![]() | 185.2 | ![]() |
![]() | ![]() | 185.5 | ![]() |
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![]() | ![]() | 185.11 | ![]() |
![]() | ![]() | 185.12 | ![]() |
![]() | ![]() | 184.1 | ![]() |
![]() | ![]() | 184.21 | INTAKE MANIFOLD |
![]() | ![]() | 184.22 | ![]() |
![]() | ![]() | 184.23 | ![]() |
![]() | ![]() | 184.24 | ![]() |
![]() | ![]() | 184.27 | ![]() |
![]() | ![]() | 184.28 | ![]() |
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![]() | ![]() | 184.58 | ![]() |
![]() | ![]() | 184.59 | ![]() |
![]() | ![]() | 184.61 | ![]() |
![]() | ![]() | 142.5R | WITH HEATING MEANS |
![]() | ![]() | 657 | COMBUSTION CHAMBER |
![]() | ![]() | 658 | ![]() |
![]() | ![]() | 659 | ![]() |
![]() | ![]() | 660 | ![]() |
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![]() | ![]() | 671 | ![]() |
![]() | ![]() | 193.1 | PARTICULAR PISTON AND ENCLOSING CYLINDER CONSTRUCTION |
![]() | ![]() | 188.1 | VALVE |
![]() | ![]() | 189 | ![]() |
![]() | ![]() | 188.14 | ![]() |
![]() | ![]() | 188.4 | ![]() |
![]() | ![]() | 190.1 | ![]() |
![]() | ![]() | 190.12 | ![]() |
![]() | ![]() | 190.3 | ![]() |
![]() | ![]() | 190.4 | ![]() |
![]() | ![]() | 190.5 | ![]() |
![]() | ![]() | 190.6 | ![]() |
![]() | ![]() | 190.8 | ![]() |
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![]() | ![]() | 190.2 | ![]() |
![]() | ![]() | 190.16 | ![]() |
![]() | ![]() | 190.17 | ![]() |
![]() | ![]() | 188.6 | ![]() |
![]() | ![]() | 188.7 | ![]() |
![]() | ![]() | 188.8 | ![]() |
![]() | ![]() | 188.9 | ![]() |
![]() | ![]() | 188.11 | ![]() |
![]() | ![]() | 188.17 | ![]() |
![]() | ![]() | 195R | FRAME CONSTRUCTION |
![]() | ![]() | 195A | ![]() |
![]() | ![]() | 195C | ![]() |
![]() | ![]() | 195E | ![]() |
![]() | ![]() | 195P | ![]() |
![]() | ![]() | 195S | ![]() |
![]() | ![]() | 195AC | ![]() |
![]() | ![]() | 195H | ![]() |
![]() | ![]() | 195HC | ![]() |
![]() | ![]() | 196R | LUBRICATORS |
![]() | ![]() | 196A | ![]() |
![]() | ![]() | 196CP | ![]() |
![]() | ![]() | 196AB | ![]() |
![]() | ![]() | 196M | ![]() |
![]() | ![]() | 196S | ![]() |
![]() | ![]() | 196V | ![]() |
![]() | ![]() | 196W | ![]() |
![]() | ![]() | 198R | ACCESSORIES |
![]() | ![]() | 198A | ![]() |
![]() | ![]() | 198B | ![]() |
![]() | ![]() | 198C | ![]() |
![]() | ![]() | 198D | ![]() |
![]() | ![]() | 198DA | ![]() |
![]() | ![]() | 198DB | ![]() |
![]() | ![]() | 198DC | ![]() |
![]() | ![]() | 198E | ![]() |
![]() | ![]() | 198F | ![]() |
![]() | ![]() | 198P | ![]() |
FOREIGN ART COLLECTIONS | ||
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived. | ||
STARTING DEVICE |
FOR101 | SPARK IGNITION TIMING CONTROL (123/406) |
FOR102 | ![]() |
FOR103 | ![]() |
FOR104 | ![]() |
FOR105 | ![]() |
FOR106 | ![]() |
FOR107 | ![]() |
FOR108 | ![]() |
FOR109 | ![]() |
FOR110 | ![]() |
FOR111 | ![]() |
FOR113 | ![]() |
FOR114 | ![]() |
FOR115 | ![]() |
FOR116 | ![]() |
FOR117 | ![]() |
FOR118 | ![]() |
FOR119 | ![]() |
FOR120 | ![]() |
FOR121 | ![]() |
FOR122 | ![]() |
FOR123 | ![]() |
FOR124 | ![]() |
DIGESTS | ||
![]() | ![]() | DIG1 | INTERCHANGEABLE |
![]() | ![]() | DIG2 | ACCUMULATED FUEL RETURN TO TANK OR ENGINE-INDUCTION SYSTEM |
![]() | ![]() | DIG3 | MODEL |
![]() | ![]() | DIG4 | STRATIFICATION |
![]() | ![]() | DIG5 | CRANKCASE PRESSURE-OPERATED PUMPS |
![]() | ![]() | DIG6 | DETACHABLE |
![]() | ![]() | DIG7 | CONVERTIBLE |
![]() | ![]() | DIG8 | MULTIPLE ENGINE UNITS |
![]() | ![]() | DIG9 | FLAME IGNITION |
![]() | ![]() | DIG10 | FLUIDIC AMPLIFIER FUEL CONTROL |
![]() | ![]() | DIG11 | ANTIDIESELING (STOPPING) |
![]() | ![]() | DIG12 | HYDROGEN |
![]() | ![]() | DIG13 | GAS |
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