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发明名称
METHOD OF CHARGING ELECTRIC ARC STEELMAKING FURNACE
摘要
申请公布号
US3681049(A)
申请公布日期
1972.08.01
申请号
USD3681049
申请日期
1969.07.17
申请人
FIERRO ESPONJA SA.
发明人
JUAN CELADA;NUEVO LEON
分类号
C21C5/52;F27D3/18;(IPC1-7):C21C5/52;C22B9/00;H05B31/04
主分类号
C21C5/52
代理机构
代理人
主权项
地址
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