2151912

Information

• Patent Grant
• 2151912

• References
• Source

• Patent Number

  2,151,912

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1939
  85 years ago

• CPC

  • H01J25/54 - having only one cavity or other resonator
  • H03B5/1835 - the active element in the amplifier being a vacuum tube

• US Classifications

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