2517538

Information

• Patent Grant
• 2517538

• References
• Source

• Patent Number

  2,517,538

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1950
  74 years ago

• CPC

  • H04L15/08 - with a single key which transmits dots in one position and dashes in a second position

• US Classifications

  • 178 - Telegraphy
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems