Improvements in advertising devices,申请号GB19360032057-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	GB476463(A)	申请公布日期	1937.12.09
申请号	GB19360032057	申请日期	1936.11.23
申请人	OLGA ISLER	发明人
分类号	G09F13/12	主分类号	G09F13/12
代理机构		代理人
主权项
地址

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