2854529

Information

• Patent Grant
• 2854529

• References
• Source

• Patent Number

  2,854,529

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1958
  66 years ago

• CPC

  • H04R9/12 - Gramophone pick-ups using a stylus Recorders using a stylus
  • H04R9/16 - signals recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

• US Classifications

  • 369 - Dynamic information storage or retrieval