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发明名称
TRAMPA DE AUDIO PARA ANTENAS COLECTIVAS DE TELEVISION.
摘要
申请公布号
ES221720(Y)
申请公布日期
1977.04.16
申请号
ES19200002217U
申请日期
1976.06.14
申请人
发明人
分类号
H04N;(IPC1-7):04N/
主分类号
H04N
代理机构
代理人
主权项
地址
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