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发明名称
Perfectionnements aux systèmes de signalisation ferroviaire
摘要
申请公布号
FR91390(E)
申请公布日期
1968.05.31
申请号
FR19660088268
申请日期
1966.12.21
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
FRICKE HANS
分类号
B61L1/18
主分类号
B61L1/18
代理机构
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