3221208

Information

• Patent Grant
• 3221208

• References
• Source

• Patent Number

  3,221,208

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1965
  59 years ago

• CPC

  • H01J31/38 - Tubes with photoconductive screen
  • H04N5/2286 - during retrace periods

• US Classifications

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