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经营范围
发明名称
Basic roof construction for a metallurgical furnace
摘要
申请公布号
US3387575(A)
申请公布日期
1968.06.11
申请号
US19640396472
申请日期
1964.09.08
申请人
BETHLEHEM STEEL COMPANY
发明人
PADFIELD RALPH C.
分类号
F23M5/06;F27D1/02
主分类号
F23M5/06
代理机构
代理人
主权项
地址
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