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发明名称
Perfectionnement aux postes à boutons d'itinéraires pour la commande du trafic ferroviaire
摘要
申请公布号
FR1013650(A)
申请公布日期
1952.07.31
申请号
FRD1013650
申请日期
1950.02.17
申请人
COMPAGNIE DES FREINS ET SIGNAUX WESTINGHOUSE
发明人
分类号
B61L19/06
主分类号
B61L19/06
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代理人
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