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发明名称
Production tubing shunt valve
摘要
申请公布号
GB2348225(B)
申请公布日期
2002.03.27
申请号
GB20000007237
申请日期
2000.03.24
申请人
* BAKER HUGHES INCORPORATED
发明人
STEVEN KEITH * TETZLAFF;DAVID B * DILLON;DAVID LESTER * OLSON
分类号
E21B34/08;F16K17/19;(IPC1-7):E21B34/00;E21B43/12
主分类号
E21B34/08
代理机构
代理人
主权项
地址
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