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发明名称
METHOD OF OPEN-CAST MINING OF STEEP DEPOSITS
摘要
申请公布号
SU1204720(A2)
申请公布日期
1986.01.15
申请号
SU19843730096
申请日期
1984.04.18
申请人
DN GORNYJ I IM.ARTEMA
发明人
DRIZHENKO ANATOLIJ YU,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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