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发明名称
Perfectionnements apportés aux dispositifs de protection de changement de voie à aiguille pour voie ferrée
摘要
申请公布号
FR1063111(A)
申请公布日期
1954.04.29
申请号
FRD1063111
申请日期
1952.05.27
申请人
THE P. & M. CO (ENGLAND) LIMITED
发明人
分类号
B61L5/10
主分类号
B61L5/10
代理机构
代理人
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地址
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