Ventilating fan,申请号US19280300271-传众专利搜索

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发明名称	Ventilating fan
摘要
申请公布号	US1793814(A)	申请公布日期	1931.02.24
申请号	US19280300271	申请日期	1928.08.17
申请人	THE REPUBLIC METALWARE COMPANY	发明人	MCCAIG WILLIAM J.
分类号	F04D29/46	主分类号	F04D29/46
代理机构		代理人
主权项
地址

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