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经营范围
发明名称
Depression of copper minerals from ores and concentrates
摘要
申请公布号
US2620068(A)
申请公布日期
1952.12.02
申请号
US19510242184
申请日期
1951.08.16
申请人
AMERICAN CYANAMID COMPANY
发明人
ALLEN CHARLES FRANCIS;BOOTH ROBERT BEN
分类号
B03D1/001;B03D1/06
主分类号
B03D1/001
代理机构
代理人
主权项
地址
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