Indirectly controlled exchange apparatus,申请号GB19790002621-传众专利搜索

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发明名称	Indirectly controlled exchange apparatus
摘要
申请公布号	GB2013451(A)	申请公布日期	1979.08.08
申请号	GB19790002621	申请日期	1979.01.25
申请人	SIEMENS AG	发明人
分类号	H04Q3/545;(IPC1-7):H04M3/00;H04Q3/54	主分类号	H04Q3/545
代理机构		代理人
主权项
地址

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