3855620

Information

• Patent Grant
• 3855620

• References
• Source

• Patent Number

  3,855,620

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1974
  50 years ago

• CPC

  • G11B3/40 - Driving of heads relatively to stationary record carriers for transducing
  • G11B5/016 - using magnetic foils
  • G11B5/40 - Protective measures on heads
  • G11B5/58 - with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation
  • 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