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经营范围
发明名称
ARRANGEMENT FOR CUTTING MINE WORKINGS IN HARD ROCK
摘要
申请公布号
SU597842(A1)
申请公布日期
1978.03.15
申请号
SU19762420983
申请日期
1976.11.16
申请人
FROLOV ALEKSANDR V,SU;PROTASOV YURIJ ,SU;ANDRIENKO NIKOLAJ ,SU;OTRADNOV ALEKSANDR M,SU
发明人
FROLOV ALEKSANDR V,SU;PROTASOV YURIJ ,SU;ANDRIENKO NIKOLAJ ,SU;OTRADNOV ALEKSANDR M,SU
分类号
E21C37/18;E21D3/00;(IPC1-7):E21C37/18
主分类号
E21C37/18
代理机构
代理人
主权项
地址
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