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发明名称
RECLOSEABLE AUXILIARY VALVE AND A METHOD OF ACTUATING IT
摘要
申请公布号
EP0092341(B1)
申请公布日期
1988.02.03
申请号
EP19830301928
申请日期
1983.04.06
申请人
HALLIBURTON COMPANY
发明人
MCMAHAN, MICHAEL EDDIE
分类号
E21B34/00;E21B23/00;E21B34/12;E21B49/08;(IPC1-7):E21B49/08
主分类号
E21B34/00
代理机构
代理人
主权项
地址
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