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发明名称
Low alloy high speed steel
摘要
申请公布号
US2736650(A)
申请公布日期
1956.02.28
申请号
US19530360340
申请日期
1953.06.08
申请人
FIRTH STERLING, INC.
发明人
GRIMSHAW LEONARD C.
分类号
主分类号
代理机构
代理人
主权项
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