3786429

Information

• Patent Grant
• 3786429

• References
• Source

• Patent Number

  3,786,429

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1974
  51 years ago

• CPC

  • G06F17/21 - Text processing
  • B41J3/46 - Printing mechanisms combined with apparatus providing a visual indication
  • B41J7/96 - Means checking correctness of setting

• US Classifications

  • 400 - Typewriting machines
  • 345 - Computer graphics processing and selective visual display systems
  • 434 - Education and demonstration
  • D18 - Printing and office machinery