3673448

Information

• Patent Grant
• 3673448

• References
• Source

• Patent Number

  3,673,448

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1972
  52 years ago

• CPC

  • H01J31/128 - provided with control means permitting the electron beam to reach selected parts of the screen

• US Classifications

  • 313 - Electric lamp and discharge devices