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发明名称
Torque control device for downhole milling
摘要
申请公布号
GB9622579(D0)
申请公布日期
1997.01.08
申请号
GB19960022579
申请日期
1996.10.30
申请人
BAKER HUGHES INCORPORATED
发明人
分类号
E21B7/06;E21B7/08;E21B29/06
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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