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发明名称
ORE ROASTING APPARATUS
摘要
申请公布号
CA373365(A)
申请公布日期
1938.04.26
申请号
CAD373365
申请日期
申请人
THE GENERAL CHEMICAL COMPANY
发明人
EDWIN J. MULLEN
分类号
主分类号
代理机构
代理人
主权项
地址
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