Improvements in or relating to Telephone Receiving Apparatus,申请号GB19680045493-传众专利搜索

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发明名称	Improvements in or relating to Telephone Receiving Apparatus
摘要
申请公布号	GB1194089(A)	申请公布日期	1970.06.10
申请号	GB19680045493	申请日期	1968.09.25
申请人	LEONARD RICHARD KAHN	发明人	LEONARD RICHARD KAHN
分类号	H04M1/05	主分类号	H04M1/05
代理机构		代理人
主权项
地址

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