发明授权
- 专利标题: Process of preparing metals with high-temperature fusing points such as tungsten andof preparing wire therefrom
- 专利标题(中): 用诸如钨等高温熔点制备金属的方法和从其制备电线
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申请号: US61115623申请日: 1923-01-06
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公开(公告)号: US1650631A公开(公告)日: 1927-11-29
- 发明人: FRITZ KOREF , HANS ALTERTHUM
- 申请人: GEN ELECTRIC
- 专利权人: Gen Electric
- 当前专利权人: Gen Electric
- 优先权: DE1650631X 1922-08-17
- 主分类号: H01K3/02
- IPC分类号: H01K3/02
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