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经营范围
发明名称
Procédé et outil pour la réduction du diamètre d'un trou
摘要
申请公布号
FR1247296(A)
申请公布日期
1960.11.25
申请号
FR19600817900
申请日期
1960.02.08
申请人
BESLY-WELLES CORPORATION
发明人
分类号
B21H3/00;B23P9/02;G04D3/00
主分类号
B21H3/00
代理机构
代理人
主权项
地址
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