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发明名称
Apparatus for hardening rolls
摘要
申请公布号
US2589495(A)
申请公布日期
1952.03.18
申请号
US19480001564
申请日期
1948.01.10
申请人
SELAS CORPORATION
发明人
HESS FREDERIC O.;KNIVETON JAMES
分类号
C21D9/38
主分类号
C21D9/38
代理机构
代理人
主权项
地址
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