2812388

Information

• Patent Grant
• 2812388

• References
• Source

• Patent Number

  2,812,388

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1957
  67 years ago

• CPC

  • H04B1/58 - Hybrid arrangements
  • H03F3/62 - Two-way amplifiers
  • H04B3/08 - in negative-feedback path of line amplifier
  • H04B3/36 - Repeater circuits
  • H04B3/38 - for signals in two different frequency ranges transmitted in opposite directions over the same transmission path

• US Classifications

  • 379 - Telephonic communications
  • 330 - Amplifiers
  • 333 - Wave transmission lines and networks