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发明名称
Procédé pour protéger les chemins de fer à grande vitesse contre l'action du vent
摘要
申请公布号
FR701609(A)
申请公布日期
1931.03.20
申请号
FRD701609
申请日期
1930.09.02
申请人
发明人
KRUCKENBERG FRANX;STEDEFELD CURT
分类号
E01F7/02
主分类号
E01F7/02
代理机构
代理人
主权项
地址
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