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发明名称
MEJORAS EN CUBIERTAS DE TECHO
摘要
申请公布号
AR216075(A1)
申请公布日期
1979.11.30
申请号
AR19770267974
申请日期
1977.06.08
申请人
ESTRUCTURAS METALICAS SA
发明人
分类号
E04D3/16;(IPC1-7):E04D3/16
主分类号
E04D3/16
代理机构
代理人
主权项
地址
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