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发明名称
Système de commande à grande distance des aiguilles et des signaux de voies ferrées
摘要
申请公布号
FR831722(A)
申请公布日期
1938.09.13
申请号
FRD831722
申请日期
1938.01.06
申请人
GENERAL RAILWAY SIGNAL COMPANY
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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