Air operated fresh air ventilator,申请号US19650438607-传众专利搜索

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发明名称	Air operated fresh air ventilator
摘要
申请公布号	US3299798(A)	申请公布日期	1967.01.24
申请号	US19650438607	申请日期	1965.03.10
申请人	MARVIN NABBEN	发明人	NABBEN MARVIN
分类号	F24F7/00;F24F11/04	主分类号	F24F7/00
代理机构		代理人
主权项
地址

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