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发明名称
VERFAHREN UND VORRICHTUNG ZUR STEUERUNG DER ABWEICHUNG EINES BOHRMEISSELS.
摘要
申请公布号
DE132742(T1)
申请公布日期
1985.09.26
申请号
DE19840108333T
申请日期
1984.07.16
申请人
DAILEY PETROLEUM SERVICES CORP., CONROE, TEX., US
发明人
ANDERS, EDWARD O., HOUSTON TEXAS 77077, US
分类号
E21B7/06;E21B7/10;E21B17/16;E21B47/02;(IPC1-7):E21B7/06
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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