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发明名称
Escalera de mano plegable perfeccionada
摘要
申请公布号
ES74815(Y)
申请公布日期
1960.11.16
申请号
ES19150000748U
申请日期
1959.06.25
申请人
ROVIRA CLAPÉS, JUAN
发明人
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主分类号
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