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发明名称
METHOD FOR MINING FLAT MINERAL BEDS
摘要
申请公布号
RU1802126(C)
申请公布日期
1993.03.15
申请号
SU19914833929
申请日期
1991.06.01
申请人
KONTSERN "KUZNETSKUGOL"
发明人
NIKISHICHEV BORIS G,SU
分类号
E21C41/18
主分类号
E21C41/18
代理机构
代理人
主权项
地址
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