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发明名称
Instrumento auxiliar de dibujo para trazar rayados y sombreados.
摘要
申请公布号
ES24921(Y)
申请公布日期
1951.05.16
申请号
ES19210000249U
申请日期
1950.11.04
申请人
RUIZ MARTÍNEZ, JAIME
发明人
分类号
主分类号
代理机构
代理人
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