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经营范围
发明名称
Azimuthal measurement-while-drilling (MWD)tool
摘要
申请公布号
GB0921016(D0)
申请公布日期
2010.01.13
申请号
GB20090021016
申请日期
2008.05.30
申请人
CBG CORPORATION
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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