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发明名称
Indicador luminoso con efecto óptico direccional
摘要
申请公布号
ES58671(U)
申请公布日期
1957.04.01
申请号
ES19710000586U
申请日期
1957.02.19
申请人
RAMONELL DE SÁENZ, JUAN
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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