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发明名称
Locking device for securing a tool in a well conduit
摘要
申请公布号
US4844159(A)
申请公布日期
1989.07.04
申请号
US19880198235
申请日期
1988.05.25
申请人
SCHLUMBERGER TECHNOLOGY CORPORATION
发明人
AIREY, PETER J.;DOREMUS, BERNARD
分类号
E21B23/02
主分类号
E21B23/02
代理机构
代理人
主权项
地址
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