DOOR PHONE INTERFACE CIRCUIT,申请号KR19900014285U-传众专利搜索

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发明名称	DOOR PHONE INTERFACE CIRCUIT
摘要
申请公布号	KR930002040(Y1)	申请公布日期	1993.04.23
申请号	KR19900014285U	申请日期	1990.09.17
申请人	HYUNDAI ELECTRONICS CO., LTD.	发明人	LEE, KYU - TAEK
分类号	H04M9/00;(IPC1-7):H04M9/00	主分类号	H04M9/00
代理机构		代理人
主权项
地址

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