3769539

Information

• Patent Grant
• 3769539

• References
• Source

• Patent Number

  3,769,539

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1973
  50 years ago

• CPC

  • H01J29/023 - secondary-electron emitting electrode arrangements
  • H01J31/36 - Tubes with image amplification section

• US Classifications

  • 315 - Electric lamp and discharge devices: systems