1421165

Information

• Patent Grant
• 1421165

• References
• Source

• Patent Number

  1,421,165

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1922
  102 years ago

• CPC

  • G05F1/62 - using bucking or boosting dc sources
  • Y10S388/905 - Armature and field windings connected in series
  • Y10S388/932 - with reverse torque

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 388 - Electricity: motor control systems