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发明名称
Perfectionnements aux systèmes de signalisation à circuit de voie pour chemins de fer et similaires
摘要
申请公布号
FR942853(A)
申请公布日期
1949.02.21
申请号
FRD942853
申请日期
1946.08.27
申请人
COMPAGNIE DES FREINS & SIGNAUX WESTINGHOUSE
发明人
分类号
B61L1/18
主分类号
B61L1/18
代理机构
代理人
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地址
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