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发明名称
SYSTEME DE SECURITE DES PASSAGES A NIVEAUX FERROVIAIRES
摘要
申请公布号
FR2943607(B3)
申请公布日期
2011.02.18
申请号
FR20090001408
申请日期
2009.03.24
申请人
OURY ALAIN
发明人
OURY ALAIN
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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