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发明名称
Downhole tool actuators
摘要
申请公布号
GB2332460(B)
申请公布日期
2002.06.12
申请号
GB19980027001
申请日期
1998.12.08
申请人
* WESTERN ATLAS INTERNATIONAL, INC.
发明人
PAUL A * REINHARDT
分类号
E21B7/08;E21B17/10;E21B23/00;E21B36/04;(IPC1-7):E21B47/00
主分类号
E21B7/08
代理机构
代理人
主权项
地址
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