Telephone Ring Detector System,申请号GB19840004671-传众专利搜索

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发明名称	Telephone Ring Detector System
摘要
申请公布号	GB2138653(A)	申请公布日期	1984.10.24
申请号	GB19840004671	申请日期	1984.02.22
申请人	* TAD AVANTI INC	发明人	STEPHEN VINCENT * LYLE;BRADFORD ELLIOT * HANSCOM
分类号	H04M1/654;(IPC1-7):H04M1/64	主分类号	H04M1/654
代理机构		代理人
主权项
地址

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