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发明名称
ELEMENTO ESTRUTURAL COMPOSTO
摘要
申请公布号
BR6100176(U)
申请公布日期
1981.06.02
申请号
BR19810000176U
申请日期
1981.02.10
申请人
DE BARROS BARRETO L
发明人
DE BARROS BARRETO L
分类号
E04B1/343;E04B2/56;(IPC1-7):E04B1/34
主分类号
E04B1/343
代理机构
代理人
主权项
地址
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