3145268

Information

• Patent Grant
• 3145268

• References
• Source

• Patent Number

  3,145,268

• Date Filed

  Not available

• Date Issued

  Tuesday, August 18, 1964
  60 years ago

• CPC

  • G09B13/02 - Dummy practice keyboard apparatus

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 400 - Typewriting machines
  • 704 - Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression