1523839

Information

• Patent Grant
• 1523839

• References
• Source

• Patent Number

  1,523,839

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1925
  100 years ago

• CPC

  • H02K27/20 - Structural association with a speed regulating device

• US Classifications

  • 318 - Electricity: motive power systems
  • 310 - Electrical generator or motor structure
  • 388 - Electricity: motor control systems