3390256

Information

• Patent Grant
• 3390256

• References
• Source

• Patent Number

  3,390,256

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1968
  56 years ago

• CPC

  • G06G7/76 - for traffic
  • B61L29/286 - using conductor circuits controlled by the vehicle
  • G06G7/70 - for vehicles
  • G06G7/78 - for direction-finding, locating, distance or velocity measuring, or navigation systems

• US Classifications

  • 246 - Railway switches and signals