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发明名称
Mechanic speed gear with multiple rapports for bicycles
摘要
申请公布号
IT1234773(B)
申请公布日期
1992.05.26
申请号
IT19890046806
申请日期
1989.01.31
申请人
BUSANI ELIO
发明人
ELIO BUSANI
分类号
B62M;(IPC1-7):B62M/
主分类号
B62M
代理机构
代理人
主权项
地址
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