2122193

Information

• Patent Grant
• 2122193

• References
• Source

• Patent Number

  2,122,193

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1938
  86 years ago

• CPC

  • H03G9/06 - for gain control and tone control

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 329 - Demodulators
  • 330 - Amplifiers
  • 333 - Wave transmission lines and networks