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发明名称
Flexible directional drilling apparatus and method
摘要
申请公布号
GB0700994(D0)
申请公布日期
2007.02.28
申请号
GB20070000994
申请日期
2007.01.18
申请人
SMITH INTERNATIONAL, INC.
发明人
分类号
主分类号
代理机构
代理人
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