2033479

Information

• Patent Grant
• 2033479

• References
• Source

• Patent Number

  2,033,479

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1936
  89 years ago

• CPC

  • H04R19/06 - Gramophone pick-ups using a stylus Recorders using a stylus

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 313 - Electric lamp and discharge devices