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发明名称
MINE VENTILATION DOOR FOR CONTROLLING AIR FLOW
摘要
申请公布号
SU1145155(A1)
申请公布日期
1985.03.15
申请号
SU19833686525
申请日期
1983.11.05
申请人
DO NI UGOLNYJ INSTITUT
发明人
PATRUSHEV MIKHAIL A,SU;EGORKIN NIKOLAJ P,SU;US VLADIMIR N,SU;VERBA VASILIJ S,SU
分类号
E21F1/10;(IPC1-7):E21F1/10
主分类号
E21F1/10
代理机构
代理人
主权项
地址
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