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发明名称
DATA TRANSMISSION
摘要
申请公布号
GB2258331(A)
申请公布日期
1993.02.03
申请号
GB19910020420
申请日期
1991.09.25
申请人
* GEC-MARCONI LIMITED;* NOWSCO WELL SERVICE
发明人
GEOFFREY PHILIP DIXON * LOCK;ROBERT * STANDEN
分类号
E21B47/16
主分类号
E21B47/16
代理机构
代理人
主权项
地址
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