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发明名称
Improved apparatus for and method of firing open hearth furnaces for melting and refining metal
摘要
申请公布号
GB518203(A)
申请公布日期
1940.02.20
申请号
GB19380027756
申请日期
1938.09.23
申请人
LEVI SNYDER LONGENECKER
发明人
分类号
F27B3/12;F27B3/20;H01B13/12
主分类号
F27B3/12
代理机构
代理人
主权项
地址
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