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发明名称
PERFECCIONAMIENTOS INTRODUCIDOS EN LOS DISPOSITIVOS RALLADORES PARA MATERIALES SoLIDOS
摘要
申请公布号
ES202771(A1)
申请公布日期
1952.08.16
申请号
ES19710002027
申请日期
1952.04.02
申请人
RITTER, ERNST
发明人
分类号
(IPC1-7):B02
主分类号
(IPC1-7):B02
代理机构
代理人
主权项
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