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发明名称
PROCEDIMIENTO E INSTALACIËN PARA FABRICAR TUBOS DE BANDA CONTINUA DE CHAPA EN DESARROLLO HELICOIDAL CON SOLDADURA
摘要
申请公布号
ES265431(A3)
申请公布日期
1961.09.01
申请号
ES19310002654
申请日期
1961.03.06
申请人
ZAYAS RATO, FRANCISCO
发明人
分类号
F16L;(IPC1-7):F16L
主分类号
F16L
代理机构
代理人
主权项
地址
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