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发明名称
Determination of Device Orientation
摘要
申请公布号
GB0305617(D0)
申请公布日期
2003.04.16
申请号
GB20030005617
申请日期
2003.03.12
申请人
TARGET WELL CONTROL LIMITED
发明人
分类号
E21B;E21B7/06;E21B47/16;E21B47/18;G01C;G01C1/00;G01C19/56;G01C21/10
主分类号
E21B
代理机构
代理人
主权项
地址
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