Roof type powered ventilator,申请号US19650490867-传众专利搜索

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发明名称	Roof type powered ventilator
摘要
申请公布号	US3313228(A)	申请公布日期	1967.04.11
申请号	US19650490867	申请日期	1965.09.28
申请人	LOREN COOK COMPANY	发明人	COOK LOREN
分类号	F24F7/02	主分类号	F24F7/02
代理机构		代理人
主权项
地址

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