3140429

Information

• Patent Grant
• 3140429

• References
• Source

• Patent Number

  3,140,429

• Date Filed

  Not available

• Date Issued

  Tuesday, July 7, 1964
  60 years ago

• CPC

  • H01H47/223 - adapted to be supplied by AC
  • H01F7/1838 - by switching-in or -out impedance

• US Classifications

  • 361 - Electricity: electrical systems and devices