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经营范围
发明名称
Blast furnace
摘要
申请公布号
US1917968(A)
申请公布日期
1933.07.11
申请号
US19310547385
申请日期
1931.06.27
申请人
GREENE FRANK C
发明人
GREENE FRANK C.
分类号
C21B7/00;C21B7/10
主分类号
C21B7/00
代理机构
代理人
主权项
地址
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