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发明名称
Perfectionnements aux mécanismes de changement de vitesse
摘要
申请公布号
FR55408(E)
申请公布日期
1952.06.30
申请号
FRD55408
申请日期
1941.09.09
申请人
发明人
BIRON JEAN-FERNAND-HENRI
分类号
F16H3/12
主分类号
F16H3/12
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代理人
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