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经营范围
发明名称
Alloy steels
摘要
申请公布号
US3326675(A)
申请公布日期
1967.06.20
申请号
US19640368238
申请日期
1964.05.18
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
KENNEFORD ARTHUR SPENCER
分类号
C22C38/04;C22C38/06;C22C38/12;C22C38/16
主分类号
C22C38/04
代理机构
代理人
主权项
地址
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