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经营范围
发明名称
Downhole telemetry system
摘要
申请公布号
GB2289117(A)
申请公布日期
1995.11.08
申请号
GB19950009120
申请日期
1995.05.04
申请人
* PILOT DRILLING CONTROL LIMITED
发明人
GEORGE * SWIETLIK
分类号
E21B47/18;(IPC1-7):F16K3/26
主分类号
E21B47/18
代理机构
代理人
主权项
地址
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