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经营范围
发明名称
Improvements in and relating to hard alloys
摘要
申请公布号
GB516227(A)
申请公布日期
1939.12.28
申请号
GB19380017662
申请日期
1938.06.14
申请人
THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED
发明人
分类号
C22C1/05
主分类号
C22C1/05
代理机构
代理人
主权项
地址
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