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发明名称
METODO PARA LA OBTENCION DE ELEMENTOS COMPUESTOS PARA IN- TERCAMBIADORES TERMICOS TUBULARES Y, ESPECIALMENTE, PARA E- CONOMIZADORES PARA CALDERAS Y ELEMENTOS COMPUESTOS OBTENIDOSCON DICHO METODO.
摘要
申请公布号
ES367082(A3)
申请公布日期
1971.04.01
申请号
ES19820003670
申请日期
1969.04.29
申请人
PENSOTTI
发明人
分类号
F28F;(IPC1-7):28F/
主分类号
F28F
代理机构
代理人
主权项
地址
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