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发明名称
Foreuse portative
摘要
申请公布号
FR1374048(A)
申请公布日期
1964.10.02
申请号
FR19630952843
申请日期
1963.11.06
申请人
J. K. SMIT & SONS INTERNATIONAL LIMITED
发明人
分类号
E21B7/02;E21B19/084
主分类号
E21B7/02
代理机构
代理人
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地址
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