3622867

Information

• Patent Grant
• 3622867

• References
• Source

• Patent Number

  3,622,867

• Date Filed

  Not available

• Date Issued

  Tuesday, November 23, 1971
  53 years ago

• CPC

  • H01F29/04 - having provision for tap-changing without interrupting the load current
  • H01F27/402 - Association of measuring or protective means
  • H02H7/055 - for tapped transformers or tap-changing means thereof
  • H02H7/222 - for switches

• US Classifications

  • 323 - Electricity: power supply or regulation systems
  • 361 - Electricity: electrical systems and devices