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发明名称
Protecting apron for charge at blast furnace top
摘要
申请公布号
US3009691(A)
申请公布日期
1961.11.21
申请号
US19590859200
申请日期
1959.12.14
申请人
YAWATA IRON & STEEL CO., LTD.
发明人
TSUJIHATA KEIJI;SAWADA YASUHIRO
分类号
C21B7/08
主分类号
C21B7/08
代理机构
代理人
主权项
地址
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