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发明名称
Drill pipe telemetry
摘要
申请公布号
GB2164681(A)
申请公布日期
1986.03.26
申请号
GB19840024043
申请日期
1984.09.22
申请人
STANDARD TELEPHONES CABLES PLC
发明人
DENNIS PERCY * NEWSTEAD
分类号
E21B47/12;(IPC1-7):E21B47/12
主分类号
E21B47/12
代理机构
代理人
主权项
地址
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