2216940

Information

• Patent Grant
• 2216940

• References
• Source

• Patent Number

  2,216,940

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1940
  84 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
  • H01J25/68 - Tubes specially designed to act as oscillator with positive grid and retarding field
  • H03C3/32 - the tube being a magnetron

• US Classifications

  • 332 - Modulators
  • 331 - Oscillators