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经营范围
发明名称
Directional drilling with an inclined bit motor and clutch
摘要
申请公布号
GB2483825(A)
申请公布日期
2012.03.21
申请号
GB20110022452
申请日期
2009.01.16
申请人
WEATHERFORD/LAMB INC.
发明人
RISHI GURJAR;OMAR NEUMANN
分类号
E21B7/06
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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