2981794

Information

• Patent Grant
• 2981794

• References
• Source

• Patent Number

  2,981,794

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1961
  64 years ago

• CPC

  • G09C1/14 - involving removable or interchangeable coding numbers
  • H01H43/24 - with timing of actuation of contacts due to a non-rotatable moving part
  • H04L27/26 - Systems using multi-frequency codes
  • H04L2209/34 - Encoding or coding

• US Classifications

  • 380 - Cryptography
  • 178 - Telegraphy
  • 341 - Coded data generation or conversion