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F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
F02F3/00—Pistons
F02F3/0076—Pistons the inside of the pistons being provided with ribs or fins
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FR601814D1925-06-261925-06-26Piston léger en alliage d'aluminium pour moteur à explosions avec ailettes intérieures évitant la dilatation
ExpiredFR601814A
(fr)