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发明名称
Extraction process for cerium
摘要
申请公布号
US2523892(A)
申请公布日期
1950.09.26
申请号
US19490092957
申请日期
1949.05.12
申请人
WARF JAMES C
发明人
WARF JAMES C.
分类号
C01F17/00
主分类号
C01F17/00
代理机构
代理人
主权项
地址
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