2223521

Information

• Patent Grant
• 2223521

• References
• Source

• Patent Number

  2,223,521

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1940
  84 years ago

• CPC

  • H01J43/025 - Circuits therefor

• US Classifications

  • 330 - Amplifiers
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 331 - Oscillators