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发明名称
Shutter device of ventilation fan
摘要
申请公布号
KR200376732(Y1)
申请公布日期
2005.03.08
申请号
KR20040033429U
申请日期
2004.11.25
申请人
发明人
分类号
F04D25/14;F24F7/013;(IPC1-7):F04D25/14
主分类号
F04D25/14
代理机构
代理人
主权项
地址
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