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发明名称
Perfectionnements aux changements de vitesse pour cycles
摘要
申请公布号
FR841407(A)
申请公布日期
1939.05.19
申请号
FRD841407
申请日期
1938.05.21
申请人
发明人
KEND ERNEST
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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