2028839

Information

• Patent Grant
• 2028839

• References
• Source

• Patent Number

  2,028,839

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1936
  89 years ago

• CPC

  • H05B41/048 - using electromagnetic relays

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems