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发明名称
Oil well tester
摘要
申请公布号
US1814894(A)
申请公布日期
1931.07.14
申请号
US19300455409
申请日期
1930.05.24
申请人
EDDIE C. CAMERON;GEORGE MUENNINK, SR.;JOE C. JOHNSON
发明人
CAMERON HUGH F.
分类号
E21B49/08
主分类号
E21B49/08
代理机构
代理人
主权项
地址
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