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发明名称
Verfahren zur Herstellung von metallischem Niob und Tantal aus Gemischen von Verbindungen dieser Elemente
摘要
申请公布号
DE930347(C)
申请公布日期
1955.07.14
申请号
DE1952H014453
申请日期
1952.11.18
申请人
W. C. HERAEUS GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
发明人
SCHAEFER HARALD DR.
分类号
C01G33/00;C22B34/24
主分类号
C01G33/00
代理机构
代理人
主权项
地址
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