TIME DIVISION SWITCHING SYSTEM,申请号GB19770019872-传众专利搜索

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发明名称	TIME DIVISION SWITCHING SYSTEM
摘要
申请公布号	GB1494630(A)	申请公布日期	1977.12.07
申请号	GB19770019872	申请日期	1974.12.19
申请人	WESTERN ELECTRIC CO INC	发明人
分类号	H04Q3/545;H04Q11/04;(IPC1-7):H04Q11/04	主分类号	H04Q3/545
代理机构		代理人
主权项
地址

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