TELEGRAPHY,申请号IED12591-传众专利搜索

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发明名称	TELEGRAPHY
摘要
申请公布号	IE12591(L)	申请公布日期	1933.02.27
申请号	IED12591	申请日期	1931.11.17
申请人	THE WESTERN UNION TELEGRAPH CO	发明人
分类号	(IPC1-7):H04L3/00	主分类号	(IPC1-7):H04L3/00
代理机构		代理人
主权项
地址

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