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发明名称
Perfectionnements aux mécanismes de changement de vitesse
摘要
申请公布号
FR710460(A)
申请公布日期
1931.08.24
申请号
FRD710460
申请日期
1931.02.04
申请人
发明人
THOMSEN THOMAS PETER;THOMSEN ANTON VALDEMAR
分类号
F16H15/52
主分类号
F16H15/52
代理机构
代理人
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