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发明名称
ELEKTRISCHES BOHRLOCHMESSUNGSSYSTEM
摘要
申请公布号
DE69412825(D1)
申请公布日期
1998.10.01
申请号
DE19946012825
申请日期
1994.06.07
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V., DEN HAAG/S'GRAVENHAGE, NL
发明人
KOELMAN, JOHANNES, MARIA, VIANNEY, ANTONIUS, NL-2288 GD RIJSWIJK, NL
分类号
E21B47/12;G01N27/04;G01V3/24;(IPC1-7):G01V3/24
主分类号
E21B47/12
代理机构
代理人
主权项
地址
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