2500424

Information

• Patent Grant
• 2500424

• References
• Source

• Patent Number

  2,500,424

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1950
  74 years ago

• CPC

  • H04B3/08 - in negative-feedback path of line amplifier

• US Classifications

  • 330 - Amplifiers
  • 324 - Electricity: measuring and testing