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发明名称
Perfectionnements aux procédés et appareils pour la taille des engrenages hélicoïdaux
摘要
申请公布号
FR687476(A)
申请公布日期
1930.08.08
申请号
FRD687476
申请日期
1929.12.31
申请人
PERKINS MACHINE AND GEAR COMPANY
发明人
分类号
B23F5/14
主分类号
B23F5/14
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代理人
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