2173910

Information

• Patent Grant
• 2173910

• References
• Source

• Patent Number

  2,173,910

• Date Filed

  Not available

• Date Issued

  Tuesday, September 26, 1939
  85 years ago

• CPC

  • H03F3/54 - Amplifiers using transit-time effect in tubes or semiconductor devices
  • H01J25/68 - Tubes specially designed to act as oscillator with positive grid and retarding field

• US Classifications

  • 330 - Amplifiers