2386049

Information

• Patent Grant
• 2386049

• References
• Source

• Patent Number

  2,386,049

• Date Filed

  Not available

• Date Issued

  Tuesday, October 2, 1945
  79 years ago

• CPC

  • H04R19/06 - Gramophone pick-ups using a stylus Recorders using a stylus
  • H03C3/28 - using variable impedance driven mechanically or acoustically
  • H04R19/04 - Microphones

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 332 - Modulators
  • 361 - Electricity: electrical systems and devices