3728485

Information

• Patent Grant
• 3728485

• References
• Source

• Patent Number

  3,728,485

• Date Filed

  Not available

• Date Issued

  Tuesday, April 17, 1973
  51 years ago

• CPC

  • H04L7/065 - and superimposed by modulation
  • G04G9/0011 - using coded signals

• US Classifications

  • 375 - Pulse or digital communications
  • 968 - Horology