2559454

Information

• Patent Grant
• 2559454

• References
• Source

• Patent Number

  2,559,454

• Date Filed

  Not available

• Date Issued

  Tuesday, July 3, 1951
  74 years ago

• CPC

  • H04R19/06 - Gramophone pick-ups using a stylus Recorders using a stylus

• US Classifications

  • 332 - Modulators