SUBSCRIBER DIGITAL MULTIPLEXING SYSTEM WITH TIME DIVISION CONCENTRATION,申请号GB19750049411-传众专利搜索

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发明名称	SUBSCRIBER DIGITAL MULTIPLEXING SYSTEM WITH TIME DIVISION CONCENTRATION
摘要
申请公布号	GB1512440(A)	申请公布日期	1978.06.01
申请号	GB19750049411	申请日期	1975.12.02
申请人	ISEC	发明人
分类号	H04M7/14;H04Q11/04;(IPC1-7):H04J3/06	主分类号	H04M7/14
代理机构		代理人
主权项
地址

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