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发明名称
PERFECCIONAMIENTOS EN LA FABRICACIËN DE GRAMËFONOS
摘要
申请公布号
ES235651(A3)
申请公布日期
1957.11.01
申请号
ES19510002356
申请日期
1957.05.16
申请人
LLOBERA BORRAS, JUAN
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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