PCM TDM SWITCHING NETWORKS,申请号GB19750009492-传众专利搜索

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发明名称	PCM TDM SWITCHING NETWORKS
摘要
申请公布号	GB1496041(A)	申请公布日期	1977.12.21
申请号	GB19750009492	申请日期	1975.03.07
申请人	SIEMENS AG	发明人
分类号	H04Q3/52;H04Q11/04	主分类号	H04Q3/52
代理机构		代理人
主权项
地址

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