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发明名称
Extracting and analyzing gas from well drilling mud
摘要
申请公布号
US2923151(A)
申请公布日期
1960.02.02
申请号
US19560628884
申请日期
1956.12.17
申请人
PHILLIPS PETROLEUM COMPANY
发明人
ENGLE CHARLES J.;MARWIL STANLEY J.
分类号
E21B49/00;G01N1/22
主分类号
E21B49/00
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代理人
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