2141291

Information

• Patent Grant
• 2141291

• References
• Source

• Patent Number

  2,141,291

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1938
  86 years ago

• CPC

  • H01J25/68 - Tubes specially designed to act as oscillator with positive grid and retarding field
  • H03D7/20 - by means of transit-time tubes
  • H04L27/04 - Modulator circuits Transmitter circuits

• US Classifications

  • 455 - Telecommunications
  • 331 - Oscillators