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发明名称
Well caliper
摘要
申请公布号
US2645027(A)
申请公布日期
1953.07.14
申请号
US19470753512
申请日期
1947.06.09
申请人
EASTMAN OIL WELL SURVEY COMPANY
发明人
EASTMAN HARLAN J.;JACKSON JOHN G.
分类号
E21B47/08
主分类号
E21B47/08
代理机构
代理人
主权项
地址
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