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发明名称
UN NUEVO SISTEMA DE TRATAMIENTO DE TUBERiAS DE HORMIGoN ARMADO
摘要
申请公布号
ES192630(A1)
申请公布日期
1951.04.16
申请号
ES19300001926
申请日期
1950.04.13
申请人
CARRIL CARVAJAL, CARLOS
发明人
分类号
(IPC1-7):B28
主分类号
(IPC1-7):B28
代理机构
代理人
主权项
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