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发明名称
Perfectionnements aux transmetteurs de code pour systèmes de signalisation pour chemins de fer et similaires
摘要
申请公布号
FR937550(A)
申请公布日期
1948.08.19
申请号
FRD937550
申请日期
1946.08.26
申请人
COMPAGNIE DES FREINS ET SIGNAUX WESTINGHOUSE
发明人
分类号
B61L23/16
主分类号
B61L23/16
代理机构
代理人
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