2275886

Information

• Patent Grant
• 2275886

• References
• Source

• Patent Number

  2,275,886

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1942
  82 years ago

• CPC

  • H01J9/045 - Activation of assembled cathode

• US Classifications

  • 445 - Electric lamp or space discharge component or device manufacturing
  • 427 - Coating processes