2237896

Information

• Patent Grant
• 2237896

• References
• Source

• Patent Number

  2,237,896

• Date Filed

  Not available

• Date Issued

  Tuesday, April 8, 1941
  83 years ago

• CPC

  • H01J31/52 - having grid-like image screen through which the electron ray or beam passes and by which the ray or beam is influenced before striking the luminescent output screen
  • H01J31/40 - having grid-like image screen through which the electron ray passes and by which the ray is influenced before striking the output electrode

• US Classifications

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