2165307

Information

• Patent Grant
• 2165307

• References
• Source

• Patent Number

  2,165,307

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1939
  85 years ago

• CPC

  • H04N5/782 - on tape
  • G11B5/00 - Recording by magnetisation or demagnetisation of a record carrier Reproducing by magnetic means Record carriers therefor
  • G11B11/115 - using a beam

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems
  • 324 - Electricity: measuring and testing
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 340 - Communications: electrical
  • 386 - Motion video signal processing for recording or reproducing
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER