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发明名称
ORE ROASTING FURNACE
摘要
申请公布号
CA319823(A)
申请公布日期
1932.02.16
申请号
CAD319823
申请日期
申请人
THE GENERAL CHEMICAL COMPANY
发明人
HAROLD O. C. INGRAHAM
分类号
主分类号
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代理人
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