3798477

Information

• Patent Grant
• 3798477

• References
• Source

• Patent Number

  3,798,477

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1974
  50 years ago

• CPC

  • H01J29/41 - using secondary emission
  • H01J31/122 - Direct viewing storage tubes without storage grid

• US Classifications

  • 313 - Electric lamp and discharge devices