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发明名称
Perfectionnements aux dérailleurs pour changements de vitesse
摘要
申请公布号
FR982409(A)
申请公布日期
1951.06.11
申请号
FRD982409
申请日期
1943.06.16
申请人
发明人
POULAIN LEON-GABRIEL
分类号
B62M9/124;B62M9/1248;B62M9/126
主分类号
B62M9/124
代理机构
代理人
主权项
地址
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