2902570

Information

• Patent Grant
• 2902570

• References
• Source

• Patent Number

  2,902,570

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1959
  65 years ago

• CPC

  • H01H33/168 - the impedance being inserted both while closing and while opening the switch
  • H01H33/83 - wherein the contacts are opened by the flow of air or gas

• US Classifications

  • 218 - High-voltage switches with arc preventing or extinguishing devices
  • 200 - Electricity: circuit makers and breakers
  • 361 - Electricity: electrical systems and devices