3823393

Information

• Patent Grant
• 3823393

• References
• Source

• Patent Number

  3,823,393

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1974
  50 years ago

• CPC

  • G06F5/085 - in which the data is recirculated
  • B41J5/42 - by strips or tapes
  • G06F3/0232 - Manual direct entries
  • G06F3/09 - Digital output to typewriters

• US Classifications

  • 400 - Typewriting machines