Transmission wheel, method for manufacturing transmission wheel and self-winding wheel train structure having transmission wheel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 23, 2002
Grant Date -
N/A
app pub date -
Aug 29, 2000
filing date -
Jan 7, 1998
priority date (Note) -
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Abstract
A transmission wheel comprises a gear having a hole and a pinion having a plurality of teeth and being removably mounted in the hole of the gear. The hole of the gear has at least one chord-shaped stop portion engaging two adjacent teeth of the pinion to prevent relative rotation between the pinion and the gear.
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