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发明名称
UN SISTEMA DE CONTROL CENTRALIZADO PARA FERROCARRILES
摘要
申请公布号
ES231060(A1)
申请公布日期
1957.03.16
申请号
ES19600002310
申请日期
1956.09.26
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
分类号
B61L7/08;B61L19/06;(IPC1-7):B61L7/08
主分类号
B61L7/08
代理机构
代理人
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地址
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