3847700

Information

• Patent Grant
• 3847700

• References
• Source

• Patent Number

  3,847,700

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1974
  50 years ago

• CPC

  • G11B5/62 - Record carriers characterised by the selection of the material
  • G11C11/06085 - Multi-aperture structures or multi-magnetic closed circuits, each aperture storing a "bit", realised by rods, plates, grids, waffle-irons,(
  • H01F41/14 - for applying magnetic films to substrates
  • Y10S428/90 - Magnetic feature
  • Y10T29/49069 - Data storage inductor or core
  • Y10T29/49155 - Manufacturing circuit on or in base
  • Y10T29/49833 - Punching, piercing or reaming part by surface of second part
  • Y10T156/1056 - Perforating lamina
  • Y10T156/107 - Punching and bonding pressure application by punch
  • Y10T156/109 - Embedding of laminae within face of additional laminae

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 029 - Metal working
  • 428 - Stock material or miscellaneous articles
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER