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发明名称
Improvements in the manufacture of iron or steel
摘要
申请公布号
GB336954(A)
申请公布日期
1930.10.20
申请号
GB19290022103
申请日期
1929.07.18
申请人
HANS HAGEMANN
发明人
分类号
C21C7/06
主分类号
C21C7/06
代理机构
代理人
主权项
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