3909563

Information

• Patent Grant
• 3909563

• References
• Source

• Patent Number

  3,909,563

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1975
  49 years ago

• CPC

  • H04B17/404 - selected by local filters

• US Classifications

  • 714 - Error detection/correction and fault detection/recovery
  • 370 - Multiplex communications
  • 375 - Pulse or digital communications