1436807

Information

• Patent Grant
• 1436807

• References
• Source

• Patent Number

  1,436,807

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1922
  102 years ago

• CPC

  • H01K9/00 - Lamps having two or more incandescent bodies separately heated
  • H01K9/02 - to provide substitution in the event of failure of one of the bodies

• US Classifications

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