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发明名称
Method and means for increasing the flow of fluid from well casings
摘要
申请公布号
US2144208(A)
申请公布日期
1939.01.17
申请号
US19350036797
申请日期
1935.08.19
申请人
HERCULES OIL WELL SHOOTING COMPANY
发明人
METER JAMES W. VAN
分类号
E21B43/114
主分类号
E21B43/114
代理机构
代理人
主权项
地址
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