3809946

Information

• Patent Grant
• 3809946

• References
• Source

• Patent Number

  3,809,946

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • 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
  • H01J31/38 - Tubes with photoconductive screen

• US Classifications

  • 315 - Electric lamp and discharge devices: systems