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发明名称
SAFETY INTERLOCK FOR CONTROL LINES
摘要
申请公布号
EP1957747(A4)
申请公布日期
2011.03.23
申请号
EP20060848998
申请日期
2006.11.30
申请人
WEATHERFORD/LAMB INC.
发明人
VOLD, GISLE;ABRAHAMSEN, EGILL;VESTERSJO, SVEIN EGIL;BAUSTAD, TERJE;STOKKELAND, KAJ;HAUGEN, DAVID M.
分类号
E21B19/10;E21B17/10
主分类号
E21B19/10
代理机构
代理人
主权项
地址
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