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发明名称
Machine perforatrice perfectionnée
摘要
申请公布号
FR1300296(A)
申请公布日期
1962.08.03
申请号
FR19610865734
申请日期
1961.06.22
申请人
CONSTRUCTIONS ELECTRO-MECANIQUES DE SAINT-ETIENNE
发明人
分类号
E21B7/02;E21D9/00
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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