636286

Information

• Patent Grant
• 636286

• References
• Source

• Patent Number

  636,286

• Date Filed

  Not available

• Date Issued

  Tuesday, November 7, 1899
  125 years ago

• CPC

  • H01H43/30 - with timing of actuation of contacts due to thermal action
  • G05D23/306 - using semiconductor devices

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets