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发明名称
METHOD OF SELECTIVE IN-DUMP BENEFICATION OF ORES
摘要
申请公布号
RU2085740(C1)
申请公布日期
1997.07.27
申请号
SU19925064207
申请日期
1992.03.25
申请人
VOROBEV ALEKSANDR E;CHEKUSHINA TATYANA V;VOROBEV SERGEJ E;CHEKUSHIN ALEKSEJ V
发明人
VOROBEV ALEKSANDR E;CHEKUSHINA TATYANA V;VOROBEV SERGEJ E;CHEKUSHIN ALEKSEJ V
分类号
E21C41/26;(IPC1-7):E21C41/26
主分类号
E21C41/26
代理机构
代理人
主权项
地址
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