1820928

Information

• Patent Grant
• 1820928

• References
• Source

• Patent Number

  1,820,928

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1931
  92 years ago

• CPC

  • H01H33/80 - flow of arc-extinguishing fluid from a pressure source being controlled by a valve

• US Classifications

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