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发明名称
NOVO MODELO DE ESQUADRO PARA DESENHO
摘要
申请公布号
BR6915042(D0)
申请公布日期
1973.01.18
申请号
BR19690215042
申请日期
1969.12.12
申请人
FERREIRA J
发明人
FERREIRA J
分类号
主分类号
代理机构
代理人
主权项
地址
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