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发明名称
DISPOSIZIONE CIRCUITALE PER IMPIANTI DI CENTRALI DI TELECOMUNICAZIONE,SPECIE PER IMPIANTI DI CENTRALI TELEFONICHE,CON DISPOSITIVI IN COMUNE DI COMANDO E DI COLLEGAMENTO INDIVIDUALE
摘要
申请公布号
IT1092735(B)
申请公布日期
1985.07.12
申请号
IT19780020272
申请日期
1978.02.16
申请人
SIEMENS AG
发明人
分类号
H04Q3/545;H04M15/00;H04Q1/30;H04Q3/54;(IPC1-7):H04Q/
主分类号
H04Q3/545
代理机构
代理人
主权项
地址
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