3020447

Information

• Patent Grant
• 3020447

• References
• Source

• Patent Number

  3,020,447

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1962
  63 years ago

• CPC

  • H01J25/52 - with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 219 - Electric heating
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems