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发明名称
METHOD FOR ROCK MASS BLASTING
摘要
申请公布号
SU1754901(A1)
申请公布日期
1992.08.15
申请号
SU19894734745
申请日期
1989.06.28
申请人
ZAVARZIN VASILIJ G,SU;SILANTEV ALEKSANDR S,SU
发明人
ZAVARZIN VASILIJ G,SU;SILANTEV ALEKSANDR S,SU
分类号
E21C41/16
主分类号
E21C41/16
代理机构
代理人
主权项
地址
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