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经营范围
发明名称
Quenching machine
摘要
申请公布号
US2684073(A)
申请公布日期
1954.07.20
申请号
US19480022793
申请日期
1948.04.23
申请人
GREGG HENDRICK J
发明人
GREGG HENDRICK J.
分类号
C21D1/63
主分类号
C21D1/63
代理机构
代理人
主权项
地址
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