3475565

Information

• Patent Grant
• 3475565

• References
• Source

• Patent Number

  3,475,565

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1969
  55 years ago

• CPC

  • H04R17/08 - signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
  • H04R1/16 - Mounting or connecting stylus to transducer with or without damping means
  • H04R21/04 - Gramophone pick-ups using a stylus Recorders using a stylus

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 310 - Electrical generator or motor structure