Tell-tale device for telegraph printing apparatus,申请号GB19350023949-传众专利搜索

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发明名称	Tell-tale device for telegraph printing apparatus
摘要
申请公布号	GB461753(A)	申请公布日期	1937.02.24
申请号	GB19350023949	申请日期	1935.08.27
申请人	RONALD GEORGE GRIFFITH	发明人
分类号	H04L12/06	主分类号	H04L12/06
代理机构		代理人
主权项
地址

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