- 专利标题: Process of extracting metals from their ores.
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申请号: US1905256667申请日: 1905-04-20
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公开(公告)号: US968845A公开(公告)日: 1910-08-30
- 发明人: GREENAWALT WILLIAM E
- 申请人: GREENAWALT WILLIAM E
- 专利权人: William E Greenawalt
- 当前专利权人: William E Greenawalt
- 优先权: US1905256667 1905-04-20