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经营范围
发明名称
Pizarra escolar, recambiable
摘要
申请公布号
ES25598(U)
申请公布日期
1951.02.16
申请号
ES19980000255U
申请日期
1951.01.22
申请人
PORVEN SAN MARTÍN, MANUEL
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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