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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F02D
CONTROLLING COMBUSTION ENGINES
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31/00
Use of speed-sensing governors to control combustion engines, not otherwise provided for
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F02D31/001
Electric control of rotation speed
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F02D31/002
controlling air supply
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