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发明名称
MEJORAS EN DISPOSITIVO EDUCATIVO PARA FORMULACION QUIMICA.
摘要
申请公布号
ES405675(A2)
申请公布日期
1977.07.01
申请号
ES19750004056
申请日期
1972.08.09
申请人
LAREO MOSQUERA JOSE
发明人
分类号
G09B;(IPC1-7):09B/
主分类号
G09B
代理机构
代理人
主权项
地址
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