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发明名称
Improvements in and relating to copper base alloys
摘要
申请公布号
GB521731(A)
申请公布日期
1940.05.29
申请号
GB19380034434
申请日期
1938.11.25
申请人
P. R. MALLORY & CO. INC.
发明人
分类号
C22C9/00
主分类号
C22C9/00
代理机构
代理人
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