3892454

Information

• Patent Grant
• 3892454

• References
• Source

• Patent Number

  3,892,454

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1975
  49 years ago

• CPC

  • H01J29/41 - using secondary emission

• US Classifications

  • 445 - Electric lamp or space discharge component or device manufacturing
  • 313 - Electric lamp and discharge devices