2208393

Information

• Patent Grant
• 2208393

• References
• Source

• Patent Number

  2,208,393

• Date Filed

  Not available

• Date Issued

  Tuesday, July 16, 1940
  85 years ago

• CPC

  • H02P9/16 - due to variation of ohmic resistance in field circuit, using resistances switched in or out of circuit step by step

• US Classifications

  • 290 - Prime-mover dynamo plants