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发明名称
PERFECCIONAMIENTOS EN LAS COLUMNAS DE ALTAVOCES
摘要
申请公布号
ES269285(A3)
申请公布日期
1962.01.01
申请号
ES19850002692
申请日期
1961.07.21
申请人
AGUSTI MONJONELL, RAMEN
发明人
分类号
H04R;(IPC1-7):H04R
主分类号
H04R
代理机构
代理人
主权项
地址
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