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经营范围
发明名称
MEJORAS INTRODUCIDAS EN LOS ALTAVOCES
摘要
申请公布号
ES235639(A1)
申请公布日期
1958.01.16
申请号
ES19390002356
申请日期
1957.05.14
申请人
PLA HERMANOS Y COMPANIA, SOCIEDAD LIMITADA
发明人
分类号
(IPC1-7):H04
主分类号
(IPC1-7):H04
代理机构
代理人
主权项
地址
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