2894129

Information

• Patent Grant
• 2894129

• References
• Source

• Patent Number

  2,894,129

• Date Filed

  Not available

• Date Issued

  Tuesday, July 7, 1959
  65 years ago

• CPC

  • H04Q1/4423 - using one signalling frequency
  • H04L5/06 - the signals being represented by different frequencies

• US Classifications

  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 340 - Communications: electrical
  • 370 - Multiplex communications
  • 455 - Telecommunications