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经营范围
发明名称
Aluminium alloy
摘要
申请公布号
GB522050(A)
申请公布日期
1940.06.07
申请号
GB19380035234
申请日期
1938.12.02
申请人
HORACE CAMPBELL HALL
发明人
分类号
C22C21/12
主分类号
C22C21/12
代理机构
代理人
主权项
地址
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