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发明名称
Changement de vitesses au pédalier avec roue libre combinée pour bicyclettes, tandems ou similaires
摘要
申请公布号
FR872499(A)
申请公布日期
1942.06.10
申请号
FRD872499
申请日期
1940.11.27
申请人
发明人
SERTILLANGE MAURICE
分类号
B62M25/00
主分类号
B62M25/00
代理机构
代理人
主权项
地址
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