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发明名称
Process of concentrating minerals of the class consisting of phosphate, calcite, barite, and fluorspar
摘要
申请公布号
US2222728(A)
申请公布日期
1940.11.26
申请号
US19370156089
申请日期
1937.07.28
申请人
PHOSPHATE RECOVERY CORPORATION
发明人
TARTARON FRANCIS X.
分类号
B03D1/01
主分类号
B03D1/01
代理机构
代理人
主权项
地址
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