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发明名称
Method of case hardening
摘要
申请公布号
US1984411(A)
申请公布日期
1934.12.18
申请号
US19330674897
申请日期
1933.06.08
申请人
E.I. DU PONT DE NEMOURS & COMPANY, INC.
发明人
HOLT DONALD AUBREY
分类号
C23C8/32
主分类号
C23C8/32
代理机构
代理人
主权项
地址
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