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发明名称
SYSTEME DE VOIE FERREE SANS BALLAST
摘要
申请公布号
FR2648489(B1)
申请公布日期
1991.09.27
申请号
FR19890008134
申请日期
1989.06.19
申请人
ALLEVARD INDUSTRIES SA
发明人
PHILIPPE DUVAL
分类号
E01B1/00;E01B3/40;E01B19/00;(IPC1-7):E01B1/00
主分类号
E01B1/00
代理机构
代理人
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