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发明名称
PERFECCIONAMIENTOS EN LA FABRICACION DE ALTAVOCES DE IMáN PERMANENTE
摘要
申请公布号
ES246125(A2)
申请公布日期
1959.03.16
申请号
ES19250002461
申请日期
1958.12.22
申请人
ZOBEL, ERICH V.
发明人
分类号
(IPC1-7):H04R
主分类号
(IPC1-7):H04R
代理机构
代理人
主权项
地址
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