Improvements in or relating to electric signs,申请号GB19290019559-传众专利搜索

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发明名称	Improvements in or relating to electric signs
摘要
申请公布号	GB315833(A)	申请公布日期	1930.07.24
申请号	GB19290019559	申请日期	1929.06.25
申请人	AMERICAN TRAVELING SIGN COMPANY	发明人
分类号	G09G3/00	主分类号	G09G3/00
代理机构		代理人
主权项
地址

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