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发明名称
Pressure-boost device for downhole tools
摘要
申请公布号
GB9616961(D0)
申请公布日期
1996.09.25
申请号
GB19960016961
申请日期
1996.08.13
申请人
BAKER HUGHES INCORPORATED
发明人
分类号
E21B23/04;E21B23/06;E21B33/127;F15B3/00
主分类号
E21B23/04
代理机构
代理人
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地址
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