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发明名称
Guardapuntas automático para lápices.
摘要
申请公布号
ES7160(U)
申请公布日期
1942.05.16
申请号
ES19600000071U
申请日期
1942.01.23
申请人
SANTIAGO ARROYO, CARLOS
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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