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F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
F03G4/00—Devices for producing mechanical power from geothermal energy
F03G4/074—Safety arrangements
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FR568043D1923-06-281923-06-28
Advanced heat engine powered by the expansion force of a liquid
ExpiredFR568043A
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The form of the implementation described in patent No. 17926 of a device for preventing local overheating of the heads of internal combustion engines cooled by air