Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F16
ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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F16H
GEARING
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55/00
Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
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F16H55/22
for transmissions with crossing shafts, especially worms, worm-gears
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F16H55/24
Special devices for taking up backlash
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