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发明名称
Oil well testing device
摘要
申请公布号
US1842270(A)
申请公布日期
1932.01.19
申请号
US19310545576
申请日期
1931.06.19
申请人
JOHNSTON FORMATION TESTING CORPORATION, LTD.
发明人
JOHNSTON MORDICA O.
分类号
E21B31/00;E21B49/08
主分类号
E21B31/00
代理机构
代理人
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地址
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