3897955

Information

• Patent Grant
• 3897955

• References
• Source

• Patent Number

  3,897,955

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1975
  48 years ago

• CPC

  • G11B3/22 - adjustable

• US Classifications

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