Improvements in advertising devices,申请号GB19360024089-传众专利搜索

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发明名称	Improvements in advertising devices
摘要
申请公布号	GB480792(A)	申请公布日期	1938.03.01
申请号	GB19360024089	申请日期	1936.09.03
申请人	LEOPOLD ARTHUR JOB IVES	发明人
分类号	G09F21/04	主分类号	G09F21/04
代理机构		代理人
主权项
地址

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