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经营范围
发明名称
A CYCLING AID
摘要
A crank arm for a bicycle chainset is provided. The arm comprises means for varying crank length during rotation, whereby to gain mechanical advantage.
申请公布号
EP3110685(A1)
申请公布日期
2017.01.04
申请号
EP20150709849
申请日期
2015.02.10
申请人
Robinson, Alan John
发明人
Robinson, Alan John
分类号
B62M3/04
主分类号
B62M3/04
代理机构
代理人
主权项
地址
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