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发明名称
APPARATUS FOR VENTILATION IN TUNNEL
摘要
申请公布号
KR20130004423(U)
申请公布日期
2013.07.17
申请号
KR20120000198U
申请日期
2012.01.09
申请人
发明人
分类号
E21F1/00;F24F7/06
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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