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发明名称
METHOD OF DIFFERENTIALLY TEMPERED METALS
摘要
申请公布号
CA308460(A)
申请公布日期
1931.02.10
申请号
CAD308460
申请日期
申请人
JAMES CAREY DAVIS
发明人
JAMES CAREY DAVIS
分类号
主分类号
代理机构
代理人
主权项
地址
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