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发明名称
MAIN VENTILATION INSTALLATION
摘要
申请公布号
RU1776324(C)
申请公布日期
1992.11.15
申请号
SU19904891121
申请日期
1990.12.17
申请人
VNII GORNOJ MEKHANIKI IM.M.M.FEDOROVA
发明人
BABAK GRIGORIJ A,SU;MAKSUDOVA TATYANA K,SU
分类号
E21F1/08
主分类号
E21F1/08
代理机构
代理人
主权项
地址
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