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发明名称
Procédé et dispositif pour la réalisation du profil en travers des plates-formes des voies ferrées
摘要
申请公布号
FR1455801(A)
申请公布日期
1966.05.20
申请号
FR19640993449
申请日期
1964.10.30
申请人
SECMAFER
发明人
分类号
E01B27/02
主分类号
E01B27/02
代理机构
代理人
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