3890906

Information

• Patent Grant
• 3890906

• References
• Source

• Patent Number

  3,890,906

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1975
  49 years ago

• CPC

  • H02K41/03 - Synchronous motors Motors moving step by step Reluctance motors
  • B60L13/10 - Combination of electric propulsion and magnetic suspension or levitation
  • B60L2220/14 - Synchronous machines
  • Y10S505/905 - Motor structure

• US Classifications

  • 104 - Railways
  • 505 - Superconductor technology: apparatus, material, process