2290004

Information

• Patent Grant
• 2290004

• References
• Source

• Patent Number

  2,290,004

• Date Filed

  Not available

• Date Issued

  Tuesday, July 14, 1942
  81 years ago

• CPC

  • H01H33/164 - the impedance being inserted in the circuit by blowing the arc onto an auxiliary electrode

• US Classifications

  • 218 - High-voltage switches with arc preventing or extinguishing devices