2178995

Information

• Patent Grant
• 2178995

• References
• Source

• Patent Number

  2,178,995

• Date Filed

  Not available

• Date Issued

  Tuesday, November 7, 1939
  85 years ago

• CPC

  • H03D1/16 - of discharge tubes
  • H01J43/02 - Tubes in which one or a few electrodes are secondary-electron emitting electrodes
  • H03D7/10 - the signals to be mixed being applied between different pairs of electrodes

• US Classifications

  • 455 - Telecommunications
  • 329 - Demodulators
  • 330 - Amplifiers