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发明名称
METHOD FOR MINING SHALLOW PLACER DEPOSITS BY DREDGES
摘要
申请公布号
RU2065964(C1)
申请公布日期
1996.08.27
申请号
RU19940012989
申请日期
1994.04.12
申请人
AKTSIONERNOE OBSHCHESTVO "IRGIREDMET"
发明人
PYATAKOV VIKTOR G;PLYUSNIN VITALIJ A;DONOV VIKTOR M
分类号
E21C41/30;(IPC1-7):E21C41/30
主分类号
E21C41/30
代理机构
代理人
主权项
地址
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