3057971

Information

• Patent Grant
• 3057971

• References
• Source

• Patent Number

  3,057,971

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1962
  62 years ago

• CPC

  • H04R17/04 - Gramophone pick-ups using a stylus Recorders using a stylus

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 524 - Synthetic resins or natural rubbers
  • D14 - Recording, communication, or information retrieval equipment