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发明名称
Adjustable drill bit
摘要
申请公布号
GB2454918(B)
申请公布日期
2011.11.02
申请号
GB20070022997
申请日期
2007.11.23
申请人
SCHLUMBERGER HOLDINGS LIMITED
发明人
HENRI DENOIX;PIERRE JEROME ACQUAVIVA;ERIC LAVRUT
分类号
E21B10/42;E21B7/06;E21B10/43;E21B10/54;E21B10/55
主分类号
E21B10/42
代理机构
代理人
主权项
地址
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