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经营范围
发明名称
Metal vaporizing furnace
摘要
申请公布号
US2156420(A)
申请公布日期
1939.05.02
申请号
US19370145257
申请日期
1937.05.28
申请人
INTERNATIONAL SMELTING & REFINING COMPANY
发明人
ANDERSON GEORGE;OLSEN RANGWALD S.
分类号
C22B5/16
主分类号
C22B5/16
代理机构
代理人
主权项
地址
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