2329423

Information

• Patent Grant
• 2329423

• References
• Source

• Patent Number

  2,329,423

• Date Filed

  Not available

• Date Issued

  Tuesday, September 14, 1943
  81 years ago

• CPC

  • H03F3/48 - with tubes only

• US Classifications

  • 250 - Radiant energy
  • 307 - Electrical transmission or interconnection systems
  • 315 - Electric lamp and discharge devices: systems
  • 324 - Electricity: measuring and testing
  • 330 - Amplifiers
  • 340 - Communications: electrical