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发明名称
Formation tester
摘要
申请公布号
US2158569(A)
申请公布日期
1939.05.16
申请号
US19380209796
申请日期
1938.05.24
申请人
WESTERN GULF OIL COMPANY
发明人
BOWEN LOT
分类号
E21B47/06;E21B49/08
主分类号
E21B47/06
代理机构
代理人
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地址
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