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发明名称
Moyeu à roue-libre pour cycles, permettant de démonter et d'interchanger facilement et rapidement les pignons d'entraînement de roue motrice
摘要
申请公布号
FR836753(A)
申请公布日期
1939.01.25
申请号
FRD836753
申请日期
1937.10.06
申请人
发明人
BOEHM CLAUDE
分类号
B62M9/10;F16D41/30
主分类号
B62M9/10
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代理人
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