3817538

Information

• Patent Grant
• 3817538

• References
• Source

• Patent Number

  3,817,538

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1974
  51 years ago

• CPC

  • G11B3/5836 - means connected to the pick-up arm or head

• US Classifications

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