4473823

Information

• Patent Grant
• 4473823

• References
• Source

• Patent Number

  4,473,823

• Date Filed

  Not available

• Date Issued

  Tuesday, September 25, 1984
  40 years ago

• CPC

  • B61L7/088 - Common line wire control using series of coded pulses
  • B61L27/0005 - Details of track-side communication
  • G06Q40/04 - Exchange
  • H04Q9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom