3440478

Information

• Patent Grant
• 3440478

• References
• Source

• Patent Number

  3,440,478

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1969
  55 years ago

• CPC

  • H01J31/64 - on opposite sides of screen
  • H01J29/44 - exhibiting internal electric effects caused by particle radiation
  • H01J31/36 - Tubes with image amplification section

• US Classifications

  • 315 - Electric lamp and discharge devices: systems