3747108

Information

• Patent Grant
• 3747108

• References
• Source

• Patent Number

  3,747,108

• Date Filed

  Not available

• Date Issued

  Tuesday, July 17, 1973
  51 years ago

• CPC

  • G08C19/14 - using combination of fixed frequencies
  • H04L27/10 - Frequency-modulated carrier systems

• US Classifications

  • 340 - Communications: electrical
  • 341 - Coded data generation or conversion
  • 375 - Pulse or digital communications