Overflow arrangements in automatic exchange systems,申请号GB19500025991-传众专利搜索

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发明名称	Overflow arrangements in automatic exchange systems
摘要
申请公布号	GB689266(A)	申请公布日期	1953.03.25
申请号	GB19500025991	申请日期	1950.10.25
申请人	COMPAGNIE INDUSTRIELLE DES TELEPHONES	发明人
分类号	H04Q3/42	主分类号	H04Q3/42
代理机构		代理人
主权项
地址

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