2144784

Information

• Patent Grant
• 2144784

• References
• Source

• Patent Number

  2,144,784

• Date Filed

  Not available

• Date Issued

  Tuesday, January 24, 1939
  86 years ago

• CPC

  • H01J19/82 - Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

• US Classifications

  • 330 - Amplifiers
  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems