RING SIGNAL ZERO-POINT DETECTING CIRCUIT,申请号KR19880021701U-传众专利搜索

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发明名称	RING SIGNAL ZERO-POINT DETECTING CIRCUIT
摘要
申请公布号	KR950002868(Y1)	申请公布日期	1995.04.15
申请号	KR19880021701U	申请日期	1988.12.28
申请人	GOLDSTAR TELECOMMUNICATION CO., LTD.	发明人	LEE, DONG - CHOL
分类号	H04M3/02;(IPC1-7):H04M3/02	主分类号	H04M3/02
代理机构		代理人
主权项
地址

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