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发明名称
CIRCUITO CONFERENZA PER CENTRALI TELEFONICHE DI COMMUTAZIONE DI TIPO NUMERICO.
摘要
申请公布号
IT8121227(D0)
申请公布日期
1981.04.16
申请号
IT19810021227
申请日期
1981.04.16
申请人
ITALTEL SOCIETA' ITALIANA TELECOMUNICAZIONI S.P.A.
发明人
VINCENZO FALZONE;MARCELLO TOMMASI
分类号
H04M3/56;(IPC1-7):H04M/
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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