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发明名称
VORRICHTUNG ZUM RICHTUNGSBOHREN
摘要
申请公布号
AT264449(T)
申请公布日期
2004.04.15
申请号
AT20000902785T
申请日期
2000.02.11
申请人
HALCO DRILLING INTERNATIONAL LIMITED
发明人
FALVEY, ALISTAIR MICHAEL;GARTSIDE, JOHN WILLOUGHBY
分类号
E21B7/04;E21B7/08;E21B10/36;E21B17/02;E21B17/046;(IPC1-7):E21B7/04
主分类号
E21B7/04
代理机构
代理人
主权项
地址
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