3895264

Information

• Patent Grant
• 3895264

• References
• Source

• Patent Number

  3,895,264

• Date Filed

  Not available

• Date Issued

  Tuesday, July 15, 1975
  49 years ago

• CPC

  • H02H11/001 - in case of incorrect or interrupted earth connection
  • H02H3/353 - involving comparison of phase voltages

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 324 - Electricity: measuring and testing