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发明名称
Perfectionnements aux circuits de commande et de controle d'un signal dans les systèmes de contrôle du trafic ferroviaire
摘要
申请公布号
FR1008556(A)
申请公布日期
1952.05.19
申请号
FRD1008556
申请日期
1948.04.27
申请人
COMPAGNIE DES FREINS ET SIGNAUX WESTINGHOUSE
发明人
分类号
B61L19/06
主分类号
B61L19/06
代理机构
代理人
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