2986609

Information

• Patent Grant
• 2986609

• References
• Source

• Patent Number

  2,986,609

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1961
  63 years ago

• CPC

  • G11B25/06 - using web-form record carriers
  • G09B5/062 - Combinations of audio and printed presentations
  • G11B5/00 - Recording by magnetisation or demagnetisation of a record carrier Reproducing by magnetic means Record carriers therefor
  • G11B5/00804 - magnetic sheets
  • G11B5/0086 - using cyclically driven heads providing segmented tracks
  • G11B5/00865 - for transducing on more than one segment simultaneously
  • G11B21/043 - for stationary discs
  • G11B25/046 - using stationary discs, or cards provided with a circular recording area

• US Classifications

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