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发明名称
DEVICE FOR CONTROLLING MINE VENTILATION DOOR
摘要
申请公布号
SU877063(A1)
申请公布日期
1981.10.30
申请号
SU19792826972
申请日期
1979.10.08
申请人
SP KT BYURO I GEOTEKHNICHESKOJ MEKHANIKI AN USSR
发明人
CHEMERIS IGOR F,SU;ZAJTSEV STANISLAV M,SU;BESKROVNYJ NIKOLAJ V,SU;REZNIK VLADIMIR M,SU
分类号
E21F1/12;E05F15/10;(IPC1-7):E21F1/12
主分类号
E21F1/12
代理机构
代理人
主权项
地址
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