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经营范围
发明名称
ALUMINA RECOVERY
摘要
申请公布号
CA367573(A)
申请公布日期
1937.07.27
申请号
CAD367573
申请日期
申请人
THE ELECTRIC SMELTING AND ALUMINUM CO.
发明人
ROY C. FOLGER
分类号
主分类号
代理机构
代理人
主权项
地址
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