3912982

Information

• Patent Grant
• 3912982

• References
• Source

• Patent Number

  3,912,982

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1975
  49 years ago

• CPC

  • H02H3/36 - involving comparison of the voltage or current values at corresponding points of different systems
  • H02H7/205 - for controlled semi-conductors which are not included in a specific circuit arrangement

• US Classifications

  • 361 - Electricity: electrical systems and devices