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发明名称
Drilling with casing latch
摘要
申请公布号
GB0517985(D0)
申请公布日期
2005.10.12
申请号
GB20050017985
申请日期
2004.03.05
申请人
WEATHERFORD/LAMB INC.
发明人
分类号
E21B7/20;E21B10/64;E21B17/046;E21B23/02
主分类号
E21B7/20
代理机构
代理人
主权项
地址
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