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发明名称
Method of drilling past jammed equipment
摘要
申请公布号
GB2380746(A)
申请公布日期
2003.04.16
申请号
GB20010024221
申请日期
2001.10.09
申请人
* SMITH INTERNATIONAL INC
发明人
BRUCE * MCGARIAN;IAN ALEXANDER * GILLIES;BRIAN * CRUICKSHANK
分类号
E21B7/06;E21B31/00;(IPC1-7):E21B43/30
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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