Double-sided illuminated box sign for gas lighting,申请号GB19300006946-传众专利搜索

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发明名称	Double-sided illuminated box sign for gas lighting
摘要
申请公布号	GB345459(A)	申请公布日期	1931.03.26
申请号	GB19300006946	申请日期	1930.03.03
申请人	GERHARD FRANKENBERG ADLER	发明人
分类号	G09F13/44	主分类号	G09F13/44
代理机构		代理人
主权项
地址

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