2199273

Information

• Patent Grant
• 2199273

• References
• Source

• Patent Number

  2,199,273

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1940
  85 years ago

• CPC

  • H04N5/40 - Modulation circuits
  • H03C1/24 - modulating signal applied to different grid
  • H03F1/08 - Modification of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
  • H04N5/38 - Transmitter circuitry

• US Classifications

  • 348 - Television
  • 332 - Modulators