发明授权
US1650631A Process of preparing metals with high-temperature fusing points such as tungsten andof preparing wire therefrom 失效
用诸如钨等高温熔点制备金属的方法和从其制备电线

  • 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
  • 申请号: US61115623
    申请日: 1923-01-06
  • 公开(公告)号: US1650631A
    公开(公告)日: 1927-11-29
  • 发明人: FRITZ KOREFHANS 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
Process of preparing metals with high-temperature fusing points such as tungsten andof preparing wire therefrom
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