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发明名称
Apparat til fræsning i en underjordisk borebrønds foring
摘要
申请公布号
DK0846837(T3)
申请公布日期
2004.03.22
申请号
DK19970309894T
申请日期
1997.12.05
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
GANO, JOHN C.;WHITE, PAT M.
分类号
E21B7/06;E21B23/01;E21B23/02;E21B23/04;E21B23/06;E21B29/06;(IPC1-7):E21B23/01;E21B33/129
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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