IMPROVEMENTS IN SUBSCRIBER'S TELEPHONE LINE EQUIPMENT,申请号HK19800000059-传众专利搜索

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发明名称	IMPROVEMENTS IN SUBSCRIBER'S TELEPHONE LINE EQUIPMENT
摘要
申请公布号	HK5980(A)	申请公布日期	1980.02.29
申请号	HK19800000059	申请日期	1980.02.21
申请人	JEUMONT SCHNEIDER	发明人
分类号	H04Q3/72;H04M3/00;H04M3/02;H04M19/00;(IPC1-7):H04M19/00	主分类号	H04Q3/72
代理机构		代理人
主权项
地址

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