2222933

Information

• Patent Grant
• 2222933

• References
• Source

• Patent Number

  2,222,933

• Date Filed

  Not available

• Date Issued

  Tuesday, November 26, 1940
  84 years ago

• CPC

  • H04B1/1623 - using tubes
  • H03G7/04 - incorporating negative feedback

• US Classifications

  • 330 - Amplifiers
  • 333 - Wave transmission lines and networks
  • 348 - Television