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经营范围
发明名称
Furnace for annealing metal sheets by a continuous process
摘要
申请公布号
US1944974(A)
申请公布日期
1934.01.30
申请号
US19300451748
申请日期
1930.05.12
申请人
ERNEST GRIFFITHS
发明人
GRIFFITHS ERNEST
分类号
C21D9/46
主分类号
C21D9/46
代理机构
代理人
主权项
地址
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