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经营范围
发明名称
Blast furnace
摘要
申请公布号
US2338175(A)
申请公布日期
1944.01.04
申请号
US19410412255
申请日期
1941.09.25
申请人
GIBSON ROBERT M
发明人
GIBSON ROBERT M.
分类号
C21B7/00;C21B7/08
主分类号
C21B7/00
代理机构
代理人
主权项
地址
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