1881645

Information

• Patent Grant
• 1881645

• References
• Source

• Patent Number

  1,881,645

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1932
  92 years ago

• CPC

  • H01J9/505 - Regeneration of cathodes
  • H01J9/045 - Activation of assembled cathode
  • Y02W30/828 - Lighting equipment or discharge tubes

• US Classifications

  • 445 - Electric lamp or space discharge component or device manufacturing
  • 315 - Electric lamp and discharge devices: systems
  • 324 - Electricity: measuring and testing