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经营范围
发明名称
Open hearth furnace
摘要
申请公布号
US2011554(A)
申请公布日期
1935.08.13
申请号
US19330680591
申请日期
1933.07.15
申请人
LUETSCHER OLIVER P
发明人
LUETSCHER OLIVER P.
分类号
F27B3/00
主分类号
F27B3/00
代理机构
代理人
主权项
地址
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