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发明名称
Perfectionnements apportés aux changements de vitesse pour bicyclettes
摘要
申请公布号
FR989405(A)
申请公布日期
1951.09.10
申请号
FRD989405
申请日期
1949.06.21
申请人
发明人
VINCENZONI ALVARO
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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