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发明名称
Process for a two-stage gaseous reduction of iron ore
摘要
申请公布号
US2481217(A)
申请公布日期
1949.09.06
申请号
US19470752019
申请日期
1947.06.03
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
HEMMINGER CHARLES E.
分类号
C21B13/00
主分类号
C21B13/00
代理机构
代理人
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地址
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