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发明名称
ELECTRIC ARC FURNACE ROOFS
摘要
申请公布号
GB1597850(A)
申请公布日期
1981.09.09
申请号
GB19780018031
申请日期
1978.05.05
申请人
VEITSCHER MAGNESITWERKE AG
发明人
分类号
F27D1/18;(IPC1-7):F27D1/02
主分类号
F27D1/18
代理机构
代理人
主权项
地址
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