3377439

Information

• Patent Grant
• 3377439

• References
• Source

• Patent Number

  3,377,439

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1968
  56 years ago

• CPC

  • H04R17/06 - comprising two or more styli or transducers
  • H04R1/16 - Mounting or connecting stylus to transducer with or without damping means
  • H04R17/08 - signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

• US Classifications

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