3771022

Information

• Patent Grant
• 3771022

• References
• Source

• Patent Number

  3,771,022

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1973
  52 years ago

• CPC

  • H02H9/049 - Circuit arrangements for limiting the number of protection devices
  • H02H9/06 - using spark-gap arresters

• US Classifications

  • 361 - Electricity: electrical systems and devices