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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
GB2512204(B)
申请公布日期
2015.02.25
申请号
GB20140003591
申请日期
2014.02.28
申请人
ALAN JOHN ROBINSON
发明人
ALAN JOHN ROBINSON
分类号
B62M3/06;B62M3/04
主分类号
B62M3/06
代理机构
代理人
主权项
地址
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