2089838

Information

• Patent Grant
• 2089838

• References
• Source

• Patent Number

  2,089,838

• Date Filed

  Not available

• Date Issued

  Tuesday, August 10, 1937
  87 years ago

• CPC

  • H01H47/14 - for differential operation of the relay
  • Y10T307/872 - Repetitive make and break

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 307 - Electrical transmission or interconnection systems