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发明名称
ELEMENTO PARA VENTILACAO E ILUMINACAO EM CONSTRUCOES EM GERAL
摘要
申请公布号
BR5501088(U)
申请公布日期
1977.08.02
申请号
BR19750001088U
申请日期
1975.10.07
申请人
FREITAS P;CARDOSO S
发明人
FREITAS P;CARDOSO S
分类号
E04D13/16;(IPC1-7):E04D13/16
主分类号
E04D13/16
代理机构
代理人
主权项
地址
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