3634640

Information

• Patent Grant
• 3634640

• References
• Source

• Patent Number

  3,634,640

• Date Filed

  Not available

• Date Issued

  Tuesday, January 11, 1972
  52 years ago

• CPC

  • H01H33/92 - the arc-extinguishing fluid being liquid

• US Classifications

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