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发明名称
Compás para el trazado de elipses.
摘要
申请公布号
ES22954(Y)
申请公布日期
1950.08.16
申请号
ES19540000229U
申请日期
1950.04.20
申请人
QUESADA CARRASCO, JOAQUÍN
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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