2448493

Information

• Patent Grant
• 2448493

• References
• Source

• Patent Number

  2,448,493

• Date Filed

  Not available

• Date Issued

  Tuesday, August 31, 1948
  75 years ago

• CPC

  • H01K9/02 - to provide substitution in the event of failure of one of the bodies

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 362 - Illumination