3820797

Information

• Patent Grant
• 3820797

• References
• Source

• Patent Number

  3,820,797

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • G11B3/08545 - driven by cams
  • G11B17/16 - by mechanism in stationary centre post

• US Classifications

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