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发明名称
Tempering process for steel objects
摘要
申请公布号
US2426773(A)
申请公布日期
1947.09.02
申请号
US19420430716
申请日期
1942.02.13
申请人
HOLDEN ARTEMAS F
发明人
HOLDEN ARTEMAS F.
分类号
C21D1/46
主分类号
C21D1/46
代理机构
代理人
主权项
地址
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