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发明名称
Furnace hearth
摘要
申请公布号
US1821658(A)
申请公布日期
1931.09.01
申请号
US19300448468
申请日期
1930.04.30
申请人
GENERAL ALLOYS COMPANY
发明人
MCCORMICK GEORGE C.
分类号
C21D9/00
主分类号
C21D9/00
代理机构
代理人
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地址
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