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发明名称
Rotary steerable tool employing a timed connectioon
摘要
申请公布号
GB201211868(D0)
申请公布日期
2012.08.15
申请号
GB20120011868
申请日期
2011.01.10
申请人
SMITH INTERNATIONAL, INC.
发明人
分类号
主分类号
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