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发明名称
Perfectionnements aux systèmes de commande de barrières de passages à niveau comportant un dispositif de préavis de fermeture
摘要
申请公布号
FR1508118(A)
申请公布日期
1968.01.05
申请号
FR19660071756
申请日期
1966.08.02
申请人
SAXBY
发明人
分类号
B61L29/18
主分类号
B61L29/18
代理机构
代理人
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