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发明名称
UN DISPOSITIVO AMPLIFICADOR EN CASCADA
摘要
申请公布号
ES234235(A1)
申请公布日期
1957.09.01
申请号
ES19350002342
申请日期
1957.03.14
申请人
HARTOG, ROBERT JEAN
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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