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发明名称
APARATO PERFORADOR
摘要
申请公布号
ES228665(A1)
申请公布日期
1957.03.16
申请号
ES19650002286
申请日期
1956.05.22
申请人
SCHLUMBERGER WELL SURVEYING, CORPORATION
发明人
分类号
E21B43/118;F42B1/02;F42B3/02;(IPC1-7):E21B43/118
主分类号
E21B43/118
代理机构
代理人
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