3171920

Information

• Patent Grant
• 3171920

• References
• Source

• Patent Number

  3,171,920

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1965
  60 years ago

• CPC

  • H01H3/40 - using friction, toothed, or screw-and-nut gearing
  • H01H3/264 - using a travelling nut mechanism
  • H01H19/186 - with travelling nuts
  • H01H2003/405 - using a walking nut
  • H01H2071/665 - the reset mechanism operating directly on the normal manual operator

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 200 - Electricity: circuit makers and breakers