Louver construction for lighting fixtures,申请号US19570655976-传众专利搜索

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发明名称	Louver construction for lighting fixtures
摘要
申请公布号	US2900495(A)	申请公布日期	1959.08.18
申请号	US19570655976	申请日期	1957.04.30
申请人	FRANZ ZWICK	发明人	ZWICK FRANZ
分类号	F21V11/00;F21V11/06	主分类号	F21V11/00
代理机构		代理人
主权项
地址

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