3845440

Information

• Patent Grant
• 3845440

• References
• Source

• Patent Number

  3,845,440

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1974
  50 years ago

• CPC

  • H01H37/62 - Means other than thermal means for introducing a predetermined time delay
  • H01H61/013 - Heating arrangements for operating relays

• US Classifications

  • 337 - Electricity: electrothermally or thermally actuated switches