2223531

Information

• Patent Grant
• 2223531

• References
• Source

• Patent Number

  2,223,531

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1940
  84 years ago

• CPC

  • H01H73/14 - Indicating lamp structurally associated with the switch
  • H01H71/04 - Means for indicating condition of the switching device
  • H02H5/06 - in oil-filled electric apparatus

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 174 - Electricity: conductors and insulators