SPIRAL SCREW SPEED-UP DRIVING DEVICE

PROBLEM TO BE SOLVED: To provide a driving member utilized for a transporting vehicle requiring both a certain torque and number of revolution and a driving device and a driving member similarly used in the transporting vehicles such as bicycles, light weight vehicles and wheel chairs required to be...

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Bibliographische Detailangaben
1. Verfasser: NAKAGAWA TOKIO
Format: Patent
Sprache:eng ; jpn
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