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发明名称
Apparatus for measuring the displacement of a well tool from an adjacent surface
摘要
申请公布号
US3023507(A)
申请公布日期
1962.03.06
申请号
US19600017022
申请日期
1960.03.23
申请人
WELL SURVEYS, INCORPORATED
发明人
CAMP WILLIAM A.
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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