3696220

Information

• Patent Grant
• 3696220

• References
• Source

• Patent Number

  3,696,220

• Date Filed

  Not available

• Date Issued

  Tuesday, October 3, 1972
  52 years ago

• CPC

  • G11B3/705 - characterised by the selection of the material only
  • G11B11/00 - Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00 Record carriers therefor

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 106 - Compositions: coating or plastic
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER