2438954

Information

• Patent Grant
• 2438954

• References
• Source

• Patent Number

  2,438,954

• Date Filed

  Not available

• Date Issued

  Tuesday, April 6, 1948
  76 years ago

• CPC

  • H03B5/1835 - the active element in the amplifier being a vacuum tube
  • H03B9/01 - using discharge tubes

• US Classifications

  • 331 - Oscillators
  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems
  • 333 - Wave transmission lines and networks