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经营范围
发明名称
Hardening alloy steels
摘要
申请公布号
US1902676(A)
申请公布日期
1933.03.21
申请号
US19300496559
申请日期
1930.11.18
申请人
HUBERT SUTTON;JOHN SIDERY ARTHUR;BENJAMIN EVANS
发明人
SUTTON HUBERT;SIDERY ARTHUR JOHN;EVANS BENJAMIN
分类号
C23C12/00
主分类号
C23C12/00
代理机构
代理人
主权项
地址
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