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发明名称
Dispositif d'annonce continue, par exemple pour passages à niveau, destiné à être superposé aux circuits de voie existants
摘要
申请公布号
FR1301400(A)
申请公布日期
1962.08.17
申请号
FR19610867186
申请日期
1961.07.06
申请人
COMPAGNIE DE SIGNAUX ET D'ENTREPRISES ELECTRIQUES
发明人
分类号
B61L29/28
主分类号
B61L29/28
代理机构
代理人
主权项
地址
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