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发明名称
APERFEICOAMENTOS EM CAPA RIGIDA PARA PROTECAO DE REVISTA E PUBLICACOES
摘要
申请公布号
BR7016124(D0)
申请公布日期
1973.01.18
申请号
BR19700216124
申请日期
1970.01.19
申请人
REYNALDO GONCALVES SILVEIRA
发明人
REYNALDO GONCALVES SILVEIRA
分类号
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