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经营范围
发明名称
Telemetry
摘要
申请公布号
GB9408823(D0)
申请公布日期
1994.06.22
申请号
GB19940008823
申请日期
1994.05.04
申请人
PILOT DRILLING CONTROL LIMITED
发明人
分类号
E21B47/18
主分类号
E21B47/18
代理机构
代理人
主权项
地址
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