2257361

Information

• Patent Grant
• 2257361

• References
• Source

• Patent Number

  2,257,361

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1941
  83 years ago

• CPC

  • B66C1/08 - Circuits therefor
  • H01F7/1838 - by switching-in or -out impedance

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 322 - Electricity: single generator systems