IMPROVEMENTS IN OR RELATING TO CENTRALLY CONTROLLED TELECOMMUNICATIONS EXCHANGE SYSTEMS,申请号GB19700059844-传众专利搜索

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发明名称	IMPROVEMENTS IN OR RELATING TO CENTRALLY CONTROLLED TELECOMMUNICATIONS EXCHANGE SYSTEMS
摘要
申请公布号	GB1262836(A)	申请公布日期	1972.02.09
申请号	GB19700059844	申请日期	1970.12.17
申请人	SIEMENS AKTIENGESELLSCHAFT	发明人
分类号	H04Q3/545	主分类号	H04Q3/545
代理机构		代理人
主权项
地址

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