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经营范围
发明名称
Improvement in the manufacture of railway and tramway rails
摘要
申请公布号
GB486044(A)
申请公布日期
1938.05.30
申请号
GB19360032917
申请日期
1936.12.01
申请人
CHRISTER PETER SANDBERG;OSCAR FRIDOLF ALEXANDER SANDBERG
发明人
分类号
C21D9/04
主分类号
C21D9/04
代理机构
代理人
主权项
地址
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