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发明名称
Avviks-boreenhet
摘要
申请公布号
NO960275(A)
申请公布日期
1996.07.24
申请号
NO19960000275
申请日期
1996.01.23
申请人
ANADRILL INTERNATIONAL SA
发明人
EDDISON, ALAN M.
分类号
E21B7/06;(IPC1-7):E21B7/08
主分类号
E21B7/06
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代理人
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