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发明名称
BANDEJA DE LETRAS MOVILES PARA EL APRENDIZAJE DE LA ESCRITURA.
摘要
申请公布号
ES1004548(Y)
申请公布日期
1989.04.01
申请号
ES19880000201U
申请日期
1988.01.27
申请人
SANCHEZ MORENO GREGORIO PIO
发明人
分类号
G09B11/00;(IPC1-7):G09B11/00
主分类号
G09B11/00
代理机构
代理人
主权项
地址
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