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发明名称
ARRANGEMENT FOR PROTECTING MINE FANS FROM AIR SHOCK WAVE ACTION
摘要
申请公布号
SU1259036(A1)
申请公布日期
1986.09.23
申请号
SU19853872203
申请日期
1985.03.22
申请人
KUZBASSKIJ POLT INSTITUT
发明人
GIMELSHEJN LEONID YA,SU;FREJDLIKH ILYA S,SU
分类号
E21F1/00
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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