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PCE
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CPC Subgroup
F16H 3/06

with worm and worm-wheel or gears essentially having helical or herring-bone teeth

Full Title

Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion (speed-changing or reversing mechanisms F16H59/00 - F16H63/00) > without gears having orbital motion > with worm and worm-wheel or gears essentially having helical or herring-bone teeth