2273546

Information

• Patent Grant
• 2273546

• References
• Source

• Patent Number

  2,273,546

• Date Filed

  Not available

• Date Issued

  Tuesday, February 17, 1942
  83 years ago

• CPC

  • H04N5/60 - for the sound signals
  • H01J43/025 - Circuits therefor
  • H03D7/10 - the signals to be mixed being applied between different pairs of electrodes

• US Classifications

  • 348 - Television
  • 313 - Electric lamp and discharge devices
  • 455 - Telecommunications