2973449

Information

• Patent Grant
• 2973449

• References
• Source

• Patent Number

  2,973,449

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1961
  64 years ago

• CPC

  • H01J19/44 - Insulation between electrodes or supports within the vacuum space

• US Classifications

  • 313 - Electric lamp and discharge devices