3581003

Information

• Patent Grant
• 3581003

• References
• Source

• Patent Number

  3,581,003

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1971
  53 years ago

• CPC

  • H04L17/04 - with keyboard co-operating with code-bars

• US Classifications

  • 178 - Telegraphy
  • 250 - Radiant energy
  • 341 - Coded data generation or conversion
  • 400 - Typewriting machines