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发明名称
METHOD FOR MINING OF BOUNDARY ORE RESOURCES IN OPENCAST FLANK ZONES
摘要
申请公布号
RU1786259(C)
申请公布日期
1993.01.07
申请号
SU19914898579
申请日期
1991.01.02
申请人
INST GORNOGO DELA SIBIRSKOGO
发明人
CHIZHOV ALEKSEJ A,SU
分类号
E21C41/00
主分类号
E21C41/00
代理机构
代理人
主权项
地址
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