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发明名称
Dispositif de sécurité pour passage à niveau
摘要
申请公布号
FR82870(E)
申请公布日期
1964.04.30
申请号
FR19620917261
申请日期
1962.12.01
申请人
发明人
GALL ANDRE
分类号
B61L29/30
主分类号
B61L29/30
代理机构
代理人
主权项
地址
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