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发明名称
Aparato de dibujo con escuadra universal.
摘要
申请公布号
ES5971(Y)
申请公布日期
1942.04.16
申请号
ES19710000059U
申请日期
1940.09.27
申请人
ARAIZTEGUI GONZÁLEZ, FERMÍN
发明人
分类号
主分类号
代理机构
代理人
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