3811686

Information

• Patent Grant
• 3811686

• References
• Source

• Patent Number

  3,811,686

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  50 years ago

• CPC

  • G11B3/002 - element with stationary record carriers
  • A63H33/3027 - Radio or television sets

• US Classifications

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