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经营范围
发明名称
Improvements in and relating to refining or alloying of metals
摘要
申请公布号
GB461115(A)
申请公布日期
1937.02.10
申请号
GB19360017059
申请日期
1936.06.19
申请人
CHARLES HARDY INC.
发明人
分类号
C22C1/02
主分类号
C22C1/02
代理机构
代理人
主权项
地址
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