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发明名称
Nuevo dispositivo para sujeción de las hojas en carpetas achivadoras, clasificadores, libretas, cuadernos y similares
摘要
申请公布号
ES46864(Y)
申请公布日期
1955.08.16
申请号
ES19640000468U
申请日期
1955.03.11
申请人
HERNÁNDEZ DE BETHENCOURT, JESÚS
发明人
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主分类号
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