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发明名称
(U1 Y2) ;CUCHARA PERFECCIONADA PARA EXCAVACION DE ZANJAS
摘要
申请公布号
ES1015822(U1)
申请公布日期
1991.09.16
申请号
ES19900003398
申请日期
1990.11.28
申请人
发明人
分类号
主分类号
代理机构
代理人
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