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发明名称
Dispositif de sécurité empêchant le déraillement des véhicules roulant sur voie ferrée
摘要
申请公布号
FR1171130(A)
申请公布日期
1959.01.22
申请号
FRD1171130
申请日期
1957.04.11
申请人
发明人
MICHALSKI JOSEPH
分类号
B61F9/00
主分类号
B61F9/00
代理机构
代理人
主权项
地址
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