2122117

Information

• Patent Grant
• 2122117

• References
• Source

• Patent Number

  2,122,117

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1938
  86 years ago

• CPC

  • H01J9/505 - Regeneration of cathodes
  • Y02W30/828 - Lighting equipment or discharge tubes

• US Classifications

  • 445 - Electric lamp or space discharge component or device manufacturing
  • 065 - Glass manufacturing