3708643

Information

• Patent Grant
• 3708643

• References
• Source

• Patent Number

  3,708,643

• Date Filed

  Not available

• Date Issued

  Tuesday, January 2, 1973
  52 years ago

• CPC

  • H01H1/502 - the action of the contact pressure spring becoming active only after engagement of the contacts

• US Classifications

  • 218 - High-voltage switches with arc preventing or extinguishing devices
  • 200 - Electricity: circuit makers and breakers