2248785

Information

• Patent Grant
• 2248785

• References
• Source

• Patent Number

  2,248,785

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1941
  83 years ago

• CPC

  • H03G7/04 - incorporating negative feedback

• US Classifications

  • 381 - Electrical audio signal processing systems and devices
  • 330 - Amplifiers