1790642

Information

• Patent Grant
• 1790642

• References
• Source

• Patent Number

  1,790,642

• Date Filed

  Not available

• Date Issued

  Tuesday, February 3, 1931
  93 years ago

• CPC

  • H01H33/96 - the arc-extinguishing fluid being liquid

• US Classifications

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