3172949

Information

• Patent Grant
• 3172949

• References
• Source

• Patent Number

  3,172,949

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1965
  59 years ago

• CPC

  • G11B15/4733 - with provision for information tracking
  • G11B15/1875 - adaptations for special effects or editing

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER