Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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F02B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
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F02B75/16
Engines characterised by number of cylinders, e.g. single-cylinder engines
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F02B75/24
with cylinders arranged oppositely relative to main shaft and of "flat" type
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F02B75/243
with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings
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