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发明名称
PERFECCIONAMIENTOS EN LA FABRICACIËN DE ALTAVOCES MAGNETODINAMICOS
摘要
申请公布号
ES289426(A2)
申请公布日期
1963.12.01
申请号
ES19260002894
申请日期
1963.06.17
申请人
CANALES DE FEBRER, ALBERTO
发明人
分类号
B06B;H01H;H04R;(IPC1-7):B06B
主分类号
B06B
代理机构
代理人
主权项
地址
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