2939121

Information

• Patent Grant
• 2939121

• References
• Source

• Patent Number

  2,939,121

• Date Filed

  Not available

• Date Issued

  Tuesday, May 31, 1960
  64 years ago

• CPC

  • H04L17/04 - with keyboard co-operating with code-bars
  • H04M15/04 - Recording calls , or communications in printed, perforated or other permanent form

• US Classifications

  • 340 - Communications: electrical
  • 315 - Electric lamp and discharge devices: systems
  • 361 - Electricity: electrical systems and devices