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经营范围
发明名称
METHOD OF DUST SUPPRESSION WHEN SETTING OFF BLAST-HOLES CHARGES
摘要
申请公布号
SU1677337(A1)
申请公布日期
1991.09.15
申请号
SU19894704882
申请日期
1989.05.10
申请人
LESNIKOV ALEKSEJ,SU
发明人
LESNIKOV ALEKSEJ I,SU
分类号
E21F5/00
主分类号
E21F5/00
代理机构
代理人
主权项
地址
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