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发明名称
VENTILATION DOOR
摘要
申请公布号
SU1057694(A1)
申请公布日期
1983.11.30
申请号
SU19823412647
申请日期
1982.03.26
申请人
DO PROIZV OB PO GORNOMU MASHINOSTROENIYU
发明人
KHITSENKO VASILIJ V,SU;CHEPURNOJ NIKOLAJ T,SU;KUZNETSOV ALEKSANDR V,SU;DEMOCHKO STANISLAV I,SU
分类号
E21F1/14;(IPC1-7):E21F1/14
主分类号
E21F1/14
代理机构
代理人
主权项
地址
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