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经营范围
发明名称
Calculador didáctico elemental
摘要
申请公布号
ES32085(Y)
申请公布日期
1953.02.01
申请号
ES19850000320U
申请日期
1952.07.28
申请人
MORENO ZORRLLA, ALFREDO
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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