2499963

Information

• Patent Grant
• 2499963

• References
• Source

• Patent Number

  2,499,963

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1950
  74 years ago

• CPC

  • H01H83/14 - operated by unbalance of two or more currents or voltages
  • H02H3/13 - for multiphase applications

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 218 - High-voltage switches with arc preventing or extinguishing devices
  • 324 - Electricity: measuring and testing
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets