3773994

Information

• Patent Grant
• 3773994

• References
• Source

• Patent Number

  3,773,994

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1973
  50 years ago

• CPC

  • H01H33/86 - the flow of arc-extinguishing fluid under pressure from the contact space being controlled by a valve
  • H01H33/56 - Gas reservoirs

• US Classifications

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