2144226

Information

• Patent Grant
• 2144226

• References
• Source

• Patent Number

  2,144,226

• Date Filed

  Not available

• Date Issued

  Tuesday, January 17, 1939
  86 years ago

• CPC

  • H03D7/06 - by means of discharge tubes having more than two electrodes
  • H03F3/44 - with tubes only

• US Classifications

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