3548113

Information

• Patent Grant
• 3548113

• References
• Source

• Patent Number

  3,548,113

• Date Filed

  Not available

• Date Issued

  Tuesday, December 15, 1970
  54 years ago

• CPC

  • G11B15/62 - Maintaining desired spacing between record carrier and head
  • G11B5/325 - Erasing heads using permanent magnets
  • G11B5/54 - with provision for moving the head into or out of its operative position or across tracks
  • G11B15/04 - Preventing, inhibiting, or warning against accidental erasing or double recording

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 361 - Electricity: electrical systems and devices
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER