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发明名称
УНИВЕРСАЛЬНЫЙ ПРОХОДЧЕСКИЙ АГРЕГАТ
摘要
申请公布号
RU2172836(C2)
申请公布日期
2001.08.27
申请号
RU19980118653
申请日期
1998.10.08
申请人
发明人
Черных Н.Г.;Чижик А.С.;Франк А.Я.
分类号
E21C27/24;E21D9/10;E21D9/12
主分类号
E21C27/24
代理机构
代理人
主权项
地址
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