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发明名称
Fremgangsmåte og system for drift av et verktöy i et borehull
摘要
申请公布号
NO971782(D0)
申请公布日期
1997.04.18
申请号
NO19970001782
申请日期
1997.04.18
申请人
CAMCO INTERNATIONAL INC
发明人
MORRIS, ARTHUR JOHN
分类号
E21B47/09
主分类号
E21B47/09
代理机构
代理人
主权项
地址
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