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发明名称
Method and apparatus for measuring true vertical depth in a borehole
摘要
申请公布号
GB2473347(B)
申请公布日期
2012.03.21
申请号
GB20100015937
申请日期
2009.02.20
申请人
BAKER HUGHES INCORPORATED
发明人
ROCCO DIFOGGIO
分类号
E21B47/04
主分类号
E21B47/04
代理机构
代理人
主权项
地址
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