2511664

Information

• Patent Grant
• 2511664

• References
• Source

• Patent Number

  2,511,664

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1950
  74 years ago

• CPC

  • H04R21/04 - Gramophone pick-ups using a stylus Recorders using a stylus

• US Classifications

  • 369 - Dynamic information storage or retrieval