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发明名称
A Improve air extractor fan
摘要
申请公布号
KR20090002421(U)
申请公布日期
2009.03.11
申请号
KR20070014862U
申请日期
2007.09.06
申请人
发明人
分类号
F04D29/54;F24F7/007;F24F7/013
主分类号
F04D29/54
代理机构
代理人
主权项
地址
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