2494194

Information

• Patent Grant
• 2494194

• References
• Source

• Patent Number

  2,494,194

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1950
  75 years ago

• CPC

  • H04L1/248 - Distortion measuring systems
  • H04L12/2697 - Testing equipment; Routine testing
  • H04L17/14 - with optical sensing means
  • H04L43/50 - Testing arrangements

• US Classifications

  • 178 - Telegraphy
  • 370 - Multiplex communications