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经营范围
发明名称
Treatment of ferriferous ores
摘要
申请公布号
US2254660(A)
申请公布日期
1941.09.02
申请号
US19400352405
申请日期
1940.08.13
申请人
KARL KOLLER;ZOIGMOND GALOCSY
发明人
KOLLER KARL;GALOCSY ZOIGMOND
分类号
C21B5/00
主分类号
C21B5/00
代理机构
代理人
主权项
地址
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