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发明名称
VIDEO-CITOFONO CON SEGRETERIA CITOFONICA
摘要
申请公布号
IT8114501(V0)
申请公布日期
1981.04.16
申请号
IT19810014501U
申请日期
1981.04.16
申请人
DI GENNARO ANTONIO
发明人
IL RICHIEDENTE
分类号
H04N;(IPC1-7):H04N/
主分类号
H04N
代理机构
代理人
主权项
地址
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