3838221

Information

• Patent Grant
• 3838221

• References
• Source

• Patent Number

  3,838,221

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1974
  50 years ago

• CPC

  • H04B7/2128 - Changing of the reference station
  • H04B7/2125 - Synchronisation

• US Classifications

  • 370 - Multiplex communications
  • 375 - Pulse or digital communications
  • 455 - Telecommunications