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发明名称
Anordning og fremgangsmåte for signalering i underjordiske brönner
摘要
申请公布号
NO20012336(D0)
申请公布日期
2001.05.11
申请号
NO20010002336
申请日期
2001.05.11
申请人
HALLIBURTON ENERGY SERVICES INC
发明人
SKINNER, NEAL G.
分类号
E21B47/16;(IPC1-7):E21B
主分类号
E21B47/16
代理机构
代理人
主权项
地址
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