1190973

Information

• Patent Grant
• 1190973

• References
• Source

• Patent Number

  1,190,973

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1916
  108 years ago

• CPC

  • H04L21/02 - at the transmitting end

• US Classifications

  • 178 - Telegraphy
  • 341 - Coded data generation or conversion