2485829

Information

• Patent Grant
• 2485829

• References
• Source

• Patent Number

  2,485,829

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1949
  75 years ago

• CPC

  • G11B7/005 - Reproducing
  • G01R13/38 - using the steady or oscillatory displacement of a light beam by an electromechanical measuring system
  • G11B7/0032 - for moving-picture soundtracks
  • G11B20/24 - for reducing noise

• US Classifications

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