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经营范围
发明名称
FURNACE TOP CHARGING DEVICE
摘要
申请公布号
JPH04365808(A)
申请公布日期
1992.12.17
申请号
JP19910168978
申请日期
1991.06.14
申请人
NIPPON STEEL CORP
发明人
OKUNO YOSHIO
分类号
C21B7/20
主分类号
C21B7/20
代理机构
代理人
主权项
地址
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