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发明名称
NUEVO AMPLIFICADOR
摘要
申请公布号
ES193329(A1)
申请公布日期
1950.09.16
申请号
ES19290001933
申请日期
1950.06.09
申请人
MAILLO CUESTA, JUAN FRANCISCO
发明人
分类号
(IPC1-7):H03
主分类号
(IPC1-7):H03
代理机构
代理人
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地址
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