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发明名称
Perfectionnements aux procédés et appareils pour la production d'engrenages à vitesse variable
摘要
申请公布号
FR994720(A)
申请公布日期
1951.11.21
申请号
FRD994720
申请日期
1949.09.07
申请人
SOCIETE D'ETUDES TECHNIQUES ET INDUSTRIELLES S. E. T. I. S.
发明人
分类号
B23F15/02
主分类号
B23F15/02
代理机构
代理人
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地址
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