3829855

Information

• Patent Grant
• 3829855

• References
• Source

• Patent Number

  3,829,855

• Date Filed

  Not available

• Date Issued

  Tuesday, August 13, 1974
  50 years ago

• CPC

  • B41J21/16 - controlled by the sensing of marks or formations on the paper being typed, and undersheet, or the platen

• US Classifications

  • 715 - Data processing: presentation processing of document, operator interface processing, and screen saver display processing
  • 345 - Computer graphics processing and selective visual display systems
  • 400 - Typewriting machines