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经营范围
发明名称
Electric furnace
摘要
申请公布号
US2448886(A)
申请公布日期
1948.09.07
申请号
US19450594704
申请日期
1945.05.19
申请人
THE M. W. KELLOGG COMPANY
发明人
HOPKINS ROBERT K.
分类号
H05B3/60
主分类号
H05B3/60
代理机构
代理人
主权项
地址
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