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经营范围
发明名称
Hot-metal mixer
摘要
申请公布号
US1771241(A)
申请公布日期
1930.07.22
申请号
US19290384389
申请日期
1929.08.08
申请人
PENNSYLVANIA ENGINEERING WORKS
发明人
ALLEN LEE E.
分类号
C21C1/06
主分类号
C21C1/06
代理机构
代理人
主权项
地址
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