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发明名称
Fremgangsmåte og system for elektromagnetisk informasjonsoverföring langs metallrör i en brönn
摘要
申请公布号
NO315247(B1)
申请公布日期
2003.08.04
申请号
NO19990005019
申请日期
1999.10.14
申请人
GEOSERVICES SA
发明人
SOULIER, LOUIS
分类号
E21B47/13;E21B47/12;G01V3/30;(IPC1-7):E21B47/12
主分类号
E21B47/13
代理机构
代理人
主权项
地址
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