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发明名称
Adjustable pedal crank hub for bicycle frames
摘要
申请公布号
US2602677(A)
申请公布日期
1952.07.08
申请号
US19480042623
申请日期
1948.08.05
申请人
FRANCES L. CONNOLLY
发明人
CONNOLLY FRANCES L.
分类号
B62M1/00
主分类号
B62M1/00
代理机构
代理人
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