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发明名称
Improvements in and relating to the case-hardening of ferrous articles
摘要
申请公布号
GB518726(A)
申请公布日期
1940.03.06
申请号
GB19380025293
申请日期
1938.08.29
申请人
ROYSEL JOHN COWAN
发明人
分类号
C23C8/32
主分类号
C23C8/32
代理机构
代理人
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