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经营范围
发明名称
Process of concentrating ores
摘要
申请公布号
US2122659(A)
申请公布日期
1938.07.05
申请号
US19370142017
申请日期
1937.05.11
申请人
ARMOUR AND COMPANY
发明人
RALSTON ANDERSON W.;POOL WILLIAM O.
分类号
B03D1/004
主分类号
B03D1/004
代理机构
代理人
主权项
地址
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