3685144

Information

• Patent Grant
• 3685144

• References
• Source

• Patent Number

  3,685,144

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1972
  52 years ago

• CPC

  • G11B5/313 - Disposition of layers
  • G11B5/3163 - Fabrication methods or processes specially adapted for a particular head structure
  • G11B5/3179 - the films being mainly disposed in parallel planes
  • Y10T29/49044 - Plural magnetic deposition layers
  • Y10T29/49046 - with etching or machining of magnetic material
  • Y10T29/49064 - by coating

• US Classifications

  • 029 - Metal working
  • 360 - Dynamic magnetic information storage or retrieval
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER