3456177

Information

• Patent Grant
• 3456177

• References
• Source

• Patent Number

  3,456,177

• Date Filed

  Not available

• Date Issued

  Tuesday, July 15, 1969
  55 years ago

• CPC

  • H02P7/2985 - whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
  • Y10S388/91 - Operational/differential amplifier
  • Y10S388/932 - with reverse torque

• US Classifications

  • 388 - Electricity: motor control systems