3144520

Information

• Patent Grant
• 3144520

• References
• Source

• Patent Number

  3,144,520

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1964
  60 years ago

• CPC

  • H04N5/7805 - Recording or playback not using inductive heads
  • G11B3/64 - Re-recording
  • G11B9/00 - Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00 Record carriers therefor
  • 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

  • 360 - Dynamic magnetic information storage or retrieval
  • 365 - Static information storage and retrieval
  • 386 - Motion video signal processing for recording or reproducing
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER