AMPLIFICADOR DE AUDIOFRECUENCIA PARA SIRENA ELECTRONICA Y MEGAFONIA.,申请号ES19330002288U-传众专利搜索

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发明名称	AMPLIFICADOR DE AUDIOFRECUENCIA PARA SIRENA ELECTRONICA Y MEGAFONIA.
摘要
申请公布号	ES228833(Y)	申请公布日期	1977.12.01
申请号	ES19330002288U	申请日期	1977.05.30
申请人		发明人
分类号	H03F;(IPC1-7):03F/	主分类号	H03F
代理机构		代理人
主权项
地址

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