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发明名称
ARRANGEMENT FOR DEGASSING EXCAVATED SPACE
摘要
申请公布号
SU1465606(A1)
申请公布日期
1989.03.15
申请号
SU19874217035
申请日期
1987.03.30
申请人
VORKUTINSKOE PROIZV OB PO DOBYCHE UGLYA "VORKUTAUGOL"
发明人
BELIKOV ANATOLIJ K,SU;VAJGANDT ALEKSANDR A,SU;VAJGANDT OLEG A,SU;TISHCHENKO NIKOLAJ V,SU
分类号
E21F7/00
主分类号
E21F7/00
代理机构
代理人
主权项
地址
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