2553410

Information

• Patent Grant
• 2553410

• References
• Source

• Patent Number

  2,553,410

• Date Filed

  Not available

• Date Issued

  Tuesday, May 15, 1951
  73 years ago

• CPC

  • H04M1/647 - using magnetic tape

• US Classifications

  • 379 - Telephonic communications
  • 369 - Dynamic information storage or retrieval