2437497

Information

• Patent Grant
• 2437497

• References
• Source

• Patent Number

  2,437,497

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1948
  77 years ago

• CPC

  • H04L15/08 - with a single key which transmits dots in one position and dashes in a second position
  • Y10T307/872 - Repetitive make and break

• US Classifications

  • 178 - Telegraphy
  • 307 - Electrical transmission or interconnection systems
  • 361 - Electricity: electrical systems and devices