Improvements in or relating to telephone systems,申请号GB19580003893-传众专利搜索

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发明名称	Improvements in or relating to telephone systems
摘要
申请公布号	GB897523(A)	申请公布日期	1962.05.30
申请号	GB19580003893	申请日期	1958.02.06
申请人	TELEPHONE MANUFACTURING COMPANY LIMITED	发明人	GOLDING JOHN LYNN
分类号	H04Q3/00	主分类号	H04Q3/00
代理机构		代理人
主权项
地址

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