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发明名称
Altavoz a imán permanente.
摘要
申请公布号
ES20541(U)
申请公布日期
1949.08.16
申请号
ES19410000205U
申请日期
1949.07.21
申请人
PUIG GALCERÁN, VICENTE
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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