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发明名称
Changement de vitesse pour cycles
摘要
申请公布号
FR936769(A)
申请公布日期
1948.07.29
申请号
FRD936769
申请日期
1946.09.04
申请人
发明人
BOERIS ANGELO
分类号
B62M9/12;B62M9/16
主分类号
B62M9/12
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代理人
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