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经营范围
发明名称
DISPOSITIVO PEDAGOGICO ARITMETICO.
摘要
申请公布号
ES132056(Y)
申请公布日期
1968.05.16
申请号
ES19670132056U
申请日期
1967.08.21
申请人
EDITORIAL TEIDE, S. A.
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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