2972015

Information

• Patent Grant
• 2972015

• References
• Source

• Patent Number

  2,972,015

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1961
  64 years ago

• CPC

  • H04L17/08 - combined with perforating apparatus
  • H03M11/18 - wherein the shift keys are operated before the operation of the multifunction keys
  • H03M11/22 - Static coding

• US Classifications

  • 178 - Telegraphy
  • 340 - Communications: electrical