2864943

Information

• Patent Grant
• 2864943

• References
• Source

• Patent Number

  2,864,943

• Date Filed

  Not available

• Date Issued

  Tuesday, December 16, 1958
  66 years ago

• CPC

  • H04B1/60 - Supervising unattended repeaters
  • 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
  • H04Q9/12 - using combinations of frequencies

• US Classifications

  • 342 - Communications: directive radio wave systems and devices
  • 340 - Communications: electrical
  • 455 - Telecommunications