2372139

Information

• Patent Grant
• 2372139

• References
• Source

• Patent Number

  2,372,139

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1945
  79 years ago

• CPC

  • H02H3/021 - concerning the disconnection itself
  • H01H33/593 - for ensuring operation of the switch at a predetermined point of the ac cycle
  • H01H33/006 - adapted for interrupting fault currents with delayed zero crossings

• US Classifications

  • 361 - Electricity: electrical systems and devices