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发明名称
DETECTION MEANS FOR MUD PULSE TELEMETRY SYSTEM
摘要
申请公布号
GB2140599(B)
申请公布日期
1987.02.25
申请号
GB19840007548
申请日期
1984.03.23
申请人
* AMF INCORPORATED
发明人
DAVID E * YEO
分类号
E21B47/18;(IPC1-7):G08C23/00
主分类号
E21B47/18
代理机构
代理人
主权项
地址
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