3138850

Information

• Patent Grant
• 3138850

• References
• Source

• Patent Number

  3,138,850

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1964
  61 years ago

• CPC

  • H04R21/04 - Gramophone pick-ups using a stylus Recorders using a stylus
  • Y10T29/49099 - Coating resistive material on a base
  • Y10T29/49204 - Contact or terminal manufacturing
  • Y10T29/49982 - Coating

• US Classifications

  • 427 - Coating processes
  • 029 - Metal working