3778818

Information

• Patent Grant
• 3778818

• References
• Source

• Patent Number

  3,778,818

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1973
  51 years ago

• CPC

  • H04L13/16 - of transmitters
  • H03M11/003 - Phantom keys detection and prevention

• US Classifications

  • 341 - Coded data generation or conversion
  • 400 - Typewriting machines
  • 714 - Error detection/correction and fault detection/recovery