1980951

Information

• Patent Grant
• 1980951

• References
• Source

• Patent Number

  1,980,951

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1934
  90 years ago

• CPC

  • B60L15/22 - with sequential operation of interdependent switches
  • B60L2200/26 - Rail vehicles
  • Y02T10/645 - Control strategies for dc machines
  • Y02T10/7275 - Desired performance achievement

• US Classifications

  • 388 - Electricity: motor control systems
  • 318 - Electricity: motive power systems