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经营范围
发明名称
Improvements in or relating to aluminium base alloys
摘要
申请公布号
GB563994(A)
申请公布日期
1944.09.08
申请号
GB19420006450
申请日期
1942.05.12
申请人
THE NATIONAL SMELTING COMPANY
发明人
分类号
C22C21/02
主分类号
C22C21/02
代理机构
代理人
主权项
地址
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