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发明名称
MEJORAS INTRODUCIDAS EN EL OBJETO DE LA PATENTE PRINCIPAL REFERENTES A PERFECCIONAMIENTOS EN LAS EMISORAS DE ALTA FRECUENCIA
摘要
申请公布号
ES133473(A2)
申请公布日期
1934.04.01
申请号
ES19730001334
申请日期
1934.02.14
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
(IPC1-7):H04
主分类号
(IPC1-7):H04
代理机构
代理人
主权项
地址
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