3457557

Information

• Patent Grant
• 3457557

• References
• Source

• Patent Number

  3,457,557

• Date Filed

  Not available

• Date Issued

  Tuesday, July 22, 1969
  55 years ago

• CPC

  • G11B5/535 - perpendicular to the direction of movement of the tape
  • G11B5/00839 - using cyclically driven heads providing segmented tracks
  • G11B15/14 - Masking or switching periodically
  • G11B15/61 - on drum

• US Classifications

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