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经营范围
发明名称
METHOD OF MINERAL OPENCAST MINING
摘要
申请公布号
SU1700248(A1)
申请公布日期
1991.12.23
申请号
SU19894753663
申请日期
1989.07.12
申请人
N-PROIZV KOOPERATIV "FYUNIK"
发明人
MKRTCHYAN KAREN B,SU
分类号
E21C41/26
主分类号
E21C41/26
代理机构
代理人
主权项
地址
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