Improvements in advertising signs,申请号GB19290035604-传众专利搜索

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发明名称	Improvements in advertising signs
摘要
申请公布号	GB342814(A)	申请公布日期	1931.02.12
申请号	GB19290035604	申请日期	1929.11.21
申请人	ERIC VERNON HAWTIN	发明人
分类号	G09F13/14	主分类号	G09F13/14
代理机构		代理人
主权项
地址

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