3850436

Information

• Patent Grant
• 3850436

• References
• Source

• Patent Number

  3,850,436

• Date Filed

  Not available

• Date Issued

  Tuesday, November 26, 1974
  50 years ago

• CPC

  • G11B3/00 - Recording by mechanical cutting, deforming or pressing
  • G11B3/72 - Groove formations

• US Classifications

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