2897286

Information

• Patent Grant
• 2897286

• References
• Source

• Patent Number

  2,897,286

• Date Filed

  Not available

• Date Issued

  Tuesday, July 28, 1959
  65 years ago

• CPC

  • G01R13/04 - for producing permanent records
  • G11B5/0275 - Boundary displacement recording
  • G11B5/4907 - Details for scanning
  • G11B9/00 - Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00 Record carriers therefor

• US Classifications

  • 346 - Recorders
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 352 - Optics: motion pictures
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER