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经营范围
发明名称
ELECTRICAL CONDUCTING SYSTEM
摘要
申请公布号
EP1407111(B1)
申请公布日期
2007.03.21
申请号
EP20020751296
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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