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发明名称
METHOD OF MINING FLAT STRATIFIED MINERAL DEPOSITS
摘要
申请公布号
SU1714131(A1)
申请公布日期
1992.02.23
申请号
SU19904796707
申请日期
1990.03.02
申请人
NI GORNORUDNYJ INSTITUT
发明人
KISTANOV STANISLAV A,SU;KALINICHENKO ELENA I,SU
分类号
E21C41/18;E21C41/16
主分类号
E21C41/18
代理机构
代理人
主权项
地址
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