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发明名称
ARRANGEMENT FOR AIRING MINE WORKINGS
摘要
申请公布号
SU1583626(A1)
申请公布日期
1990.08.07
申请号
SU19874369947
申请日期
1987.12.17
申请人
INST GORNOGO DELA IM.A.A.SKOCHINSKOGO
发明人
KORSHUNOV ALEKSANDR P,SU
分类号
E21F1/14
主分类号
E21F1/14
代理机构
代理人
主权项
地址
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