2948954

Information

• Patent Grant
• 2948954

• References
• Source

• Patent Number

  2,948,954

• Date Filed

  Not available

• Date Issued

  Tuesday, August 16, 1960
  64 years ago

• CPC

  • H01J23/26 - Helical slow-wave structures Adjustment therefor
  • H01J19/00 - Details of vacuum tubes of the types covered by group H01J21/00
  • H01J2893/0025 - by winding wire upon a support
  • Y10T29/49117 - Conductor or circuit manufacturing
  • Y10T29/49996 - Successive distinct removal operations

• US Classifications

  • 445 - Electric lamp or space discharge component or device manufacturing
  • 029 - Metal working
  • 033 - Geometrical instruments
  • 072 - Metal deforming
  • 140 - Wireworking
  • 315 - Electric lamp and discharge devices: systems