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经营范围
发明名称
TUNNEL DRIVING ARRANGEMENT
摘要
申请公布号
SU798307(A1)
申请公布日期
1981.01.23
申请号
SU19792733918
申请日期
1979.03.07
申请人
INST GORNOGO DELA SIBIRSKOGO
发明人
TREGUBOV BORIS G,SU;TRUFAKIN NIKOLAJ E,SU;VLASOV VLADIMIR N,SU;MUKHIN ZHORES G,SU
分类号
E21D9/10;E21B15/00;E21D9/12;(IPC1-7):E21D9/10;E21C11/02
主分类号
E21D9/10
代理机构
代理人
主权项
地址
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