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发明名称
ELEKTRISCHES LEITSYSTEM
摘要
申请公布号
DE60219017(D1)
申请公布日期
2007.05.03
申请号
DE20026019017
申请日期
2002.06.26
申请人
WEATHERFORD/LAMB INC.
发明人
HEAD, PHILIP
分类号
E21B17/02
主分类号
E21B17/02
代理机构
代理人
主权项
地址
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