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发明名称
MINE VENTILATION UNIT
摘要
申请公布号
SU875092(A2)
申请公布日期
1981.10.23
申请号
SU19802892744
申请日期
1980.03.12
申请人
KUZBASSKIJ POLT INSTITUT
发明人
FREJDLIKH BORIS I,SU;GIMELSHEJN LEONID YA,SU;FREJDLIKH ILYA S,SU
分类号
E21F1/08;(IPC1-7):E21F1/08
主分类号
E21F1/08
代理机构
代理人
主权项
地址
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