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经营范围
发明名称
Concentration of minerals
摘要
申请公布号
US1968008(A)
申请公布日期
1934.07.24
申请号
US19290349923
申请日期
1929.03.26
申请人
MINERALS SEPARATION NORTH AMERICAN CORPORATION
发明人
CHAPMAN GEORGE ALBERT;LITTLEFORD JOHN W.
分类号
B03B5/02;B03D1/00
主分类号
B03B5/02
代理机构
代理人
主权项
地址
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