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发明名称
KERNBOHRWERKZEUG
摘要
申请公布号
DE60010449(D1)
申请公布日期
2004.06.09
申请号
DE20006010449
申请日期
2000.03.15
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
FANUEL, PHILIPPE
分类号
E21B4/02;E21B23/08;E21B25/02;(IPC1-7):E21B25/02
主分类号
E21B4/02
代理机构
代理人
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