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发明名称
DEVICE FOR INVESTIGATION OF HOLES
摘要
申请公布号
RU2052090(C1)
申请公布日期
1996.01.10
申请号
SU19925031279
申请日期
1992.01.30
申请人
TOVARISHCHESTVO S OGRANICHENNOJ OTVETSTVENNOSTYU "ELSTIN"
发明人
KATYUNIN VALENTIN V;ALADIN ANATOLIJ V;CHURILOV LEV D;DOBRYNIN SERGEJ L;KRASNOV VLADIMIR V;KALENDAREV MIKHAIL S
分类号
E21B47/00;E21B47/017;(IPC1-7):E21B47/00
主分类号
E21B47/00
代理机构
代理人
主权项
地址
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