Illuminated changeable sign device,申请号US19470763682-传众专利搜索

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发明名称	Illuminated changeable sign device
摘要
申请公布号	US2530044(A)	申请公布日期	1950.11.14
申请号	US19470763682	申请日期	1947.07.25
申请人	LOPEZ CASTILLON GUILLERMO	发明人	CASTILLON GUILLERMO LOPEZ
分类号	G09F13/00	主分类号	G09F13/00
代理机构		代理人
主权项
地址

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