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发明名称
PROCEDE POUR ENLEVER LA PIERRAILLE DU BALLAST DE VOIES FERREES
摘要
申请公布号
FR2330804(A1)
申请公布日期
1977.06.03
申请号
FR19760034379
申请日期
1976.11.08
申请人
KNAPE FRITZ
发明人
分类号
E01B27/06;E01B27/08;E01B27/10;(IPC1-7):E01B27/06
主分类号
E01B27/06
代理机构
代理人
主权项
地址
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