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经营范围
发明名称
Method for electrolytic production of refractory metal
摘要
申请公布号
GB832416(A)
申请公布日期
1960.04.13
申请号
GB19570028416
申请日期
1957.09.09
申请人
NATIONAL LEAD COMPANY
发明人
分类号
C25C7/00
主分类号
C25C7/00
代理机构
代理人
主权项
地址
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