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发明名称
DEVICE FOR MINE VENTILATION
摘要
申请公布号
RU2060397(C1)
申请公布日期
1996.05.20
申请号
RU19930006328
申请日期
1993.02.03
申请人
KOPYLOVA VILVERA ALEKSEEVNA
发明人
KOPYLOVA VILVERA ALEKSEEVNA
分类号
E21F1/08;(IPC1-7):E21F1/08
主分类号
E21F1/08
代理机构
代理人
主权项
地址
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