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发明名称
Werkzeugverbinder
摘要
申请公布号
DE69731591(T2)
申请公布日期
2005.03.31
申请号
DE19976031591T
申请日期
1997.08.18
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
BURLESON, JOHN D.;HENKE, JOSEPH A.
分类号
E21B17/06;E21B31/18;E21B43/116;(IPC1-7):E21B17/04;E21B23/04
主分类号
E21B17/06
代理机构
代理人
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