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发明名称
Sistema de representación y llenado de toda clase de figuras con fines educativos o de recreo en cualquier clase de material
摘要
申请公布号
ES50899(U)
申请公布日期
1955.12.16
申请号
ES19990000508U
申请日期
1955.06.08
申请人
FRANCISCO GARCERÁN SAURA
发明人
分类号
主分类号
代理机构
代理人
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