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发明名称
PERFECCIONAMIENTOS EN LOS PROCESOS DE EXTRUSION DE MATERIA- LES ESTRUCTURALES.
摘要
申请公布号
ES442967(A3)
申请公布日期
1977.04.16
申请号
ES19670004429
申请日期
1975.11.25
申请人
NUDESA
发明人
分类号
(IPC1-7):29F/
主分类号
(IPC1-7):29F/
代理机构
代理人
主权项
地址
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