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发明名称
Apparatus and method for providing electrical transmission of power and signals in a directional drilling apparatus
摘要
申请公布号
AU7607000(A)
申请公布日期
2001.04.24
申请号
AU20000076070
申请日期
2000.09.22
申请人
VERMEER MANUFACTURING COMPANY
发明人
MATTHEW A. MILLS;GREGG A. AUSTIN
分类号
E21B7/04;E21B17/02
主分类号
E21B7/04
代理机构
代理人
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