3740571

Information

• Patent Grant
• 3740571

• References
• Source

• Patent Number

  3,740,571

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1973
  51 years ago

• CPC

  • G05F1/46 - wherein the variable actually regulated by the final control device is dc
  • Y10T307/565 - Fixed or predetermined ratio

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 315 - Electric lamp and discharge devices: systems