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发明名称
Rotary-hearth furnace
摘要
申请公布号
US1782956(A)
申请公布日期
1930.11.25
申请号
US19260096192
申请日期
1926.03.20
申请人
GEORGE J. HAGAN COMPANY
发明人
DAUCH ALAN D.
分类号
C21D9/00
主分类号
C21D9/00
代理机构
代理人
主权项
地址
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