TIME DIVISION COMMUNICATION SWITCHING SYSTEM,申请号GB19680026679-传众专利搜索

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发明名称	TIME DIVISION COMMUNICATION SWITCHING SYSTEM
摘要
申请公布号	GB1207252(A)	申请公布日期	1970.09.30
申请号	GB19680026679	申请日期	1968.06.05
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人
分类号	H04J1/05;H04J3/20;H04M3/56	主分类号	H04J1/05
代理机构		代理人
主权项
地址

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