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发明名称
VERFAHREN ZUR BESTIMMUNG VON BOHRGESCHWINDIGKEIT
摘要
申请公布号
DE69301027(D1)
申请公布日期
1996.01.25
申请号
DE19936001027
申请日期
1993.02.22
申请人
ANADRILL INTERNATIONAL S.A., PANAMA, PA
发明人
BOOER, ANTHONY K., "ORCHARD HOUSE", CAMBRIDGESHIRE PE17 2RA, GB
分类号
E21B45/00;(IPC1-7):E21B45/00
主分类号
E21B45/00
代理机构
代理人
主权项
地址
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