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发明名称
Nuevo aparato de sonido eléctrico
摘要
申请公布号
ES46292(U)
申请公布日期
1955.04.01
申请号
ES19920000462U
申请日期
1955.02.08
申请人
ALFONSO VALLS, VICENTE
发明人
分类号
主分类号
代理机构
代理人
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