3489418

Information

• Patent Grant
• 3489418

• References
• Source

• Patent Number

  3,489,418

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1970
  55 years ago

• CPC

  • G11B17/16 - by mechanism in stationary centre post
  • G11B3/16 - adjustable
  • G11B17/14 - by mechanism in rotating centre post
  • G11B17/18 - by mechanism operating on the edge of the disc record

• US Classifications

  • 369 - Dynamic information storage or retrieval