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经营范围
发明名称
Arrangement in electric smelting furnaces
摘要
申请公布号
US2971040(A)
申请公布日期
1961.02.07
申请号
US19570703598
申请日期
1957.12.18
申请人
ELEKTROKEMISK A/S
发明人
SEM MATHIAS OVROM
分类号
C21B13/12;C21C5/52;C22B4/00
主分类号
C21B13/12
代理机构
代理人
主权项
地址
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