membrane which block air flow the way with smell, smoke from downstairs to upstairs,申请号KR20110009181U-传众专利搜索

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发明名称	membrane which block air flow the way with smell, smoke from downstairs to upstairs
摘要
申请公布号	KR200466215(Y1)	申请公布日期	2013.04.12
申请号	KR20110009181U	申请日期	2011.10.15
申请人		发明人
分类号	E04B1/00;E04F11/18;E04F19/00	主分类号	E04B1/00
代理机构		代理人
主权项
地址

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