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发明名称
Wellbore drilling system
摘要
申请公布号
GB2467488(B)
申请公布日期
2012.02.22
申请号
GB20100008711
申请日期
2008.11.24
申请人
SCHLUMBERGER HOLDINGS LIMITED
发明人
BENJAMIN PETER JEFFRYES
分类号
E21B44/00;E21B21/08
主分类号
E21B44/00
代理机构
代理人
主权项
地址
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