3470438

Information

• Patent Grant
• 3470438

• References
• Source

• Patent Number

  3,470,438

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1969
  55 years ago

• CPC

  • B66B1/30 - effective on driving gear
  • H02P7/347 - in which only the generator field is controlled
  • Y10S388/93 - Load or torque

• US Classifications

  • 388 - Electricity: motor control systems
  • 187 - Elevator, industrial lift truck, or stationary lift for vehicle
  • 318 - Electricity: motive power systems