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发明名称
METHOD OF OPEN-CAST MINING OF MINERALS
摘要
申请公布号
SU831973(A1)
申请公布日期
1981.05.23
申请号
SU19792797577
申请日期
1979.07.13
申请人
INST GEOTEKHNICHESKOJ MEKHANIKI AN UK SSR
发明人
REZNIKOV NOJ A,SU;INOZEMTSEVA NADEZHDA N,SU;LASHKO VIKTOR T,SU
分类号
E21C41/00;(IPC1-7):E21C41/00
主分类号
E21C41/00
代理机构
代理人
主权项
地址
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