2691073

Information

• Patent Grant
• 2691073

• References
• Source

• Patent Number

  2,691,073

• Date Filed

  Not available

• Date Issued

  Tuesday, October 5, 1954
  71 years ago

• CPC

  • H04B1/56 - with provision for simultaneous communication in two directions
  • H03F3/62 - Two-way amplifiers
  • H03F3/64 - with tubes only

• US Classifications

  • 370 - Multiplex communications
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 379 - Telephonic communications