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发明名称
MILL FOR WELLBORE MILLING OPERATIONS
摘要
申请公布号
EP0888490(A2)
申请公布日期
1999.01.07
申请号
EP19960934987
申请日期
1996.10.14
申请人
WEATHERFORD/LAMB INC.
发明人
PLEASANTS, CHARLES, W.
分类号
E21B7/06;E21B7/08;E21B10/50;E21B23/04;E21B23/06;E21B29/06;E21B34/10;(IPC1-7):E21B29/06
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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