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发明名称
Dispositif de sécurité pour la circulation ferroviaire
摘要
申请公布号
FR1520534(A)
申请公布日期
1968.04.12
申请号
FR19670094811
申请日期
1967.02.14
申请人
发明人
BIDEAU ANDRE
分类号
B61L1/02
主分类号
B61L1/02
代理机构
代理人
主权项
地址
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