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发明名称
PERFECCIONAMIENTOS INTRODUCIDOS EN LAS CONSTRUCCIONES TUBULARES
摘要
申请公布号
ES238290(A1)
申请公布日期
1958.05.01
申请号
ES19900002382
申请日期
1957.10.19
申请人
OSSATUB, S.A.
发明人
分类号
F16L;(IPC1-7):F16L;E04
主分类号
F16L
代理机构
代理人
主权项
地址
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