Improvements in or relating to telegraph systems,申请号GB19390015895-传众专利搜索

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发明名称	Improvements in or relating to telegraph systems
摘要
申请公布号	GB529346(A)	申请公布日期	1940.11.19
申请号	GB19390015895	申请日期	1939.05.30
申请人	THE WESTERN UNION TELEGRAPH COMPANY	发明人
分类号	H04L12/04;H04L12/62;H04L13/08	主分类号	H04L12/04
代理机构		代理人
主权项
地址

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