2390794

Information

• Patent Grant
• 2390794

• References
• Source

• Patent Number

  2,390,794

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1945
  79 years ago

• CPC

  • H03F1/40 - in discharge-tube amplifiers
  • H04R25/502 - using analog signal processing

• US Classifications

  • 381 - Electrical audio signal processing systems and devices