3004816

Information

• Patent Grant
• 3004816

• References
• Source

• Patent Number

  3,004,816

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1961
  63 years ago

• CPC

  • H01J9/045 - Activation of assembled cathode

• US Classifications

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