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经营范围
发明名称
Ore separation
摘要
申请公布号
US2508427(A)
申请公布日期
1950.05.23
申请号
US19440552851
申请日期
1944.09.06
申请人
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE INTERIOR
发明人
SHELTON FRANCIS KEITH
分类号
C01G53/00
主分类号
C01G53/00
代理机构
代理人
主权项
地址
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