2553492

Information

• Patent Grant
• 2553492

• References
• Source

• Patent Number

  2,553,492

• Date Filed

  Not available

• Date Issued

  Tuesday, May 15, 1951
  73 years ago

• CPC

  • H04R11/10 - comprising two or more styli or transducers

• US Classifications

  • 369 - Dynamic information storage or retrieval