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发明名称
Système de changement de vitesse pour cycles
摘要
申请公布号
FR1225385(A)
申请公布日期
1960.06.30
申请号
FR19590795546
申请日期
1959.05.16
申请人
发明人
MESNARD EMILIEN
分类号
B62M9/121;B62M9/126
主分类号
B62M9/121
代理机构
代理人
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地址
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