2241809

Information

• Patent Grant
• 2241809

• References
• Source

• Patent Number

  2,241,809

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1941
  84 years ago

• CPC

  • H04N3/237 - using passive elements
  • H01J29/78 - along a circle, spiral or rotating radial line

• US Classifications

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