3223970

Information

• Patent Grant
• 3223970

• References
• Source

• Patent Number

  3,223,970

• Date Filed

  Not available

• Date Issued

  Tuesday, December 14, 1965
  60 years ago

• CPC

  • B60C23/08 - by touching the ground

• US Classifications

  • 340 - Communications: electrical
  • 200 - Electricity: circuit makers and breakers