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经营范围
发明名称
Dispositif perfectionné de fixation des rails
摘要
申请公布号
FR39475(E)
申请公布日期
1931.10.20
申请号
FRD39475
申请日期
1930.12.18
申请人
发明人
LEVAIRE EDMOND-FLORIMOND
分类号
E01B9/50
主分类号
E01B9/50
代理机构
代理人
主权项
地址
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