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发明名称
Traviesa para ferrocarriles
摘要
申请公布号
ES16657(U)
申请公布日期
1948.03.01
申请号
ES19570000166U
申请日期
1948.02.05
申请人
INDUSTRIAS DEL CEMENTO S.A.
发明人
分类号
主分类号
代理机构
代理人
主权项
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