2807665

Information

• Patent Grant
• 2807665

• References
• Source

• Patent Number

  2,807,665

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1957
  67 years ago

• CPC

  • H03F1/33 - in discharge-tube amplifiers

• US Classifications

  • 381 - Electrical audio signal processing systems and devices