3681660

Information

• Patent Grant
• 3681660

• References
• Source

• Patent Number

  3,681,660

• Date Filed

  Not available

• Date Issued

  Tuesday, August 1, 1972
  53 years ago

• CPC

  • H02H9/049 - Circuit arrangements for limiting the number of protection devices

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 323 - Electricity: power supply or regulation systems