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发明名称
Remote reading fluid pressure gauge
摘要
申请公布号
US2848710(A)
申请公布日期
1958.08.19
申请号
US19540419044
申请日期
1954.03.26
申请人
GEOPHYSICAL RESEARCH CORPORATION
发明人
OWEN JOHN E.
分类号
E21B47/06;E21B47/12;G01L9/00;G01L9/12
主分类号
E21B47/06
代理机构
代理人
主权项
地址
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