Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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F01L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
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31/00
Valve drive, valve adjustment during operation, or other valve control, not provided for in groups F01L15/00 - F01L29/00
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F01L31/08
Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear
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F01L31/10
the drive being effected by eccentrics
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