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经营范围
发明名称
DISPOSITIVO PARA LA ENSENANZA.
摘要
申请公布号
ES138113(Y)
申请公布日期
1969.04.01
申请号
ES19680138113U
申请日期
1968.04.23
申请人
INSTITUTO DE HIJAS DE MARIA AUXILIADORA
发明人
分类号
G09B
主分类号
G09B
代理机构
代理人
主权项
地址
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