3821591

Information

• Patent Grant
• 3821591

• References
• Source

• Patent Number

  3,821,591

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • H04N9/285 - using quadrupole lenses
  • H04N3/16 - by deflecting electron beam in cathode-ray tube also scanning corrections

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 348 - Television