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经营范围
发明名称
Concentration of sylvite ores
摘要
申请公布号
US2689649(A)
申请公布日期
1954.09.21
申请号
US19520288046
申请日期
1952.05.15
申请人
INTERNATIONAL MINERALS & CHEMICAL CORPORATION
发明人
ATWOOD GEORGE E.
分类号
B03D1/06
主分类号
B03D1/06
代理机构
代理人
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