2806704

Information

• Patent Grant
• 2806704

• References
• Source

• Patent Number

  2,806,704

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1957
  67 years ago

• CPC

  • G11B17/0282 - by means provided on the turntable
  • Y10S425/033 - Magnet
  • Y10T29/49075 - including permanent magnet or core
  • Y10T29/49076 - From comminuted material
  • Y10T29/49577 - Phonograph component making

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 029 - Metal working
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 346 - Recorders
  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER