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发明名称
Aparato auxiliar de dibujo para trazar curvas
摘要
申请公布号
ES18138(U)
申请公布日期
1948.10.16
申请号
ES19380000181U
申请日期
1948.09.21
申请人
ARANA DEL BUSTO, ALFONSO;GÁLVEZ ALMONTE, JUAN IGNACIO;CARRO, LEONCIO
发明人
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主分类号
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