2193875

Information

• Patent Grant
• 2193875

• References
• Source

• Patent Number

  2,193,875

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1940
  84 years ago

• CPC

  • H04J14/08 - Time-division multiplex systems
  • H04L21/02 - at the transmitting end

• US Classifications

  • 358 - Facsimile and static presentation processing
  • 178 - Telegraphy
  • 250 - Radiant energy
  • 359 - Optical: systems and elements
  • 369 - Dynamic information storage or retrieval