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发明名称
Downhole drilling compositions and methods of preparation
摘要
申请公布号
GB0909334(D0)
申请公布日期
2009.07.15
申请号
GB20090009334
申请日期
2009.06.01
申请人
ENGINEERED DRILLING SOLUTIONS INC.
发明人
分类号
主分类号
代理机构
代理人
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