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发明名称
Improvements in and relating to the surface hardening of metal articles
摘要
申请公布号
GB527725(A)
申请公布日期
1940.10.15
申请号
GB19390011274
申请日期
1939.04.13
申请人
NATIONAL CYLINDER GAS COMPANY
发明人
分类号
C21D1/08
主分类号
C21D1/08
代理机构
代理人
主权项
地址
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