2977413

Information

• Patent Grant
• 2977413

• References
• Source

• Patent Number

  2,977,413

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1961
  63 years ago

• CPC

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

• US Classifications

  • 178 - Telegraphy