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发明名称
Improvements in or relating to the surface hardening of journals
摘要
申请公布号
GB667740(A)
申请公布日期
1952.03.05
申请号
GB19500008410
申请日期
1950.04.04
申请人
SPOJENE OCELARNY
发明人
分类号
C21D1/08
主分类号
C21D1/08
代理机构
代理人
主权项
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