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经营范围
发明名称
SHAFT SINKING METHOD
摘要
申请公布号
SU1742485(A1)
申请公布日期
1992.06.23
申请号
SU19904802047
申请日期
1990.03.14
申请人
G PROEKTNO-IZYSKATELSKIJ I "METROGIPROTRANS"
发明人
KRIVENKO ANDREJ A,SU;MALOYAN EDUARD A,SU;KOTOV VLADIMIR V,SU;BARSKIJ EFIM S,SU;GAVRILOV NOVOMIR S,SU;LANCHIKOV KONSTANTIN V,SU
分类号
E21D1/08
主分类号
E21D1/08
代理机构
代理人
主权项
地址
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