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经营范围
发明名称
PERFECCIONAMIENTOS INTRODUCIDOS EN EL AISLAMIENTO DE CUBIER-TAS.
摘要
申请公布号
ES448523(A1)
申请公布日期
1977.07.01
申请号
ES19230004485
申请日期
1976.06.03
申请人
FABRICACION DE ELEMENTOS NORMALIZADOS, S. A.
发明人
分类号
E04B;(IPC1-7):04B/
主分类号
E04B
代理机构
代理人
主权项
地址
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