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经营范围
发明名称
Procédé et dispositif pour souder des rails traités thermiquement
摘要
申请公布号
FR817911(A)
申请公布日期
1937.09.14
申请号
FRD817911
申请日期
1936.05.18
申请人
LAMINOIRS, HAUTS-FOURNEAUX, FORGES, FONDERIES ET USINES DE LA PRESIDENCE
发明人
分类号
C21D9/50
主分类号
C21D9/50
代理机构
代理人
主权项
地址
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