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经营范围
发明名称
Smelting of metalliferous material
摘要
申请公布号
US1862741(A)
申请公布日期
1932.06.14
申请号
US19290415041
申请日期
1929.12.18
申请人
BRADEN COPPER COMPANY
发明人
ENGBLOM EMIL
分类号
C22B15/06;F27B3/00
主分类号
C22B15/06
代理机构
代理人
主权项
地址
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