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经营范围
发明名称
DEVICE FOR AIRING BLIND MINE WORKINGS
摘要
申请公布号
SU608948(A1)
申请公布日期
1978.05.30
申请号
SU19731920101
申请日期
1973.05.17
申请人
INST GORNOGO DELA IM.A.A.SKOCHINSKOGO
发明人
TENYAKOV GRIGORIJ M,SU;GUBAJLOVSKIJ ALEKSEJ G,SU
分类号
E21F1/00;(IPC1-7):E21F1/00
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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