3638954

Information

• Patent Grant
• 3638954

• References
• Source

• Patent Number

  3,638,954

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1972
  53 years ago

• CPC

  • G11B21/043 - for stationary discs
  • G11B19/022 - Control panels

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 369 - Dynamic information storage or retrieval
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER