US Patent 7472626 Drive mechanism for a bicycle transmission assist mechanism
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Patent Inventor Names
Kazuhiro Fujii0
Yoshiaki Nanko0
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Patent abstract
A drive mechanism for a bicycle transmission assist mechanism includes a crank arm having a drive member. The drive member includes a first abutment facing a forward rotational direction of the crank arm and a non-concave sloped surface facing a rearward rotational direction of the crank arm.
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US Patent 07472626 Drive mechanism for a bicycle transmission assist mechanism US Patent 7472626 Drive mechanism for a bicycle transmission assist mechanism
Infobox
Patent Number
074726260
Patent Number
74726260
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Patent Jurisdiction
Patent Number
074726260
Date of Patent
January 6, 2009
0Patent Application Number
103877780
Date Filed
March 12, 2003
0Official Website
Patent Primary Examiner
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US Patent 07472626 Drive mechanism for a bicycle transmission assist mechanism
Infobox
Is a
Patent jurisdiction
Patent number
07472626
Date of patent
January 6, 2009
Patent application number
10387778
Date Filed
March 12, 2003
Patent primary examiner
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