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发明名称
Avviksboreenhet
摘要
申请公布号
NO954362(D0)
申请公布日期
1995.10.31
申请号
NO19950004362
申请日期
1995.10.31
申请人
ANADRILL INTERNATIONAL SA
发明人
EDDISON, ALAN M.
分类号
E21B7/06;(IPC1-7):E21B
主分类号
E21B7/06
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代理人
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