3597545

Information

• Patent Grant
• 3597545

• References
• Source

• Patent Number

  3,597,545

• Date Filed

  Not available

• Date Issued

  Tuesday, August 3, 1971
  53 years ago

• CPC

  • H04M1/647 - using magnetic tape

• US Classifications

  • 379 - Telephonic communications
  • 360 - Dynamic magnetic information storage or retrieval