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发明名称
(U1 Y2) ;VALVULA DE COMPUERTA PERFECCIONADA
摘要
申请公布号
ES1018275(U1)
申请公布日期
1992.01.16
申请号
ES19910002169
申请日期
1991.07.09
申请人
发明人
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主分类号
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