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经营范围
发明名称
PROCEDIMIENTO Y DISPOSITIVO PARA LA FABRICACION DE CODOS TU-BULARES SOLDADOS INTERIORMENTE.
摘要
申请公布号
ES465241(A1)
申请公布日期
1978.09.16
申请号
ES19410004652
申请日期
1977.12.20
申请人
GEBRUDER SULZER, AG
发明人
分类号
B21C37/15;B21C37/28;B23K9/04;B23K37/047;B23P15/00;(IPC1-7):23P/
主分类号
B21C37/15
代理机构
代理人
主权项
地址
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