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经营范围
发明名称
Electric furnace
摘要
申请公布号
US1851984(A)
申请公布日期
1932.04.05
申请号
US19270200465
申请日期
1927.06.21
申请人
IVAR RENNERFELT
发明人
RENNERFELT IVAR
分类号
H05B6/22
主分类号
H05B6/22
代理机构
代理人
主权项
地址
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