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发明名称
CONTOUR BLASTING METHOD
摘要
申请公布号
SU909165(A1)
申请公布日期
1982.02.28
申请号
SU19802900713
申请日期
1980.03.21
申请人
STAKHANOVSKIJ KOMMUNARSKOGO GORNO-METALLURGICHESKOGO INSTITUTA
发明人
GARTSUEV EVGENIJ M,SU
分类号
E21C37/00;(IPC1-7):E21C37/00
主分类号
E21C37/00
代理机构
代理人
主权项
地址
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