3382174

Information

• Patent Grant
• 3382174

• References
• Source

• Patent Number

  3,382,174

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1968
  56 years ago

• CPC

  • G11B5/70668 - containing a dopant
  • C01G49/02 - Oxides Hydroxides
  • C01G49/06 - Ferric oxide (Fe2O3)
  • G11B5/70647 - with a skin
  • G11B5/70652 - gamma - Fe2 O3
  • G11B5/70663 - Preparation processes specially adapted therefor
  • C01P2006/60 - Optical properties

• US Classifications

  • 252 - Compositions
  • 106 - Compositions: coating or plastic
  • 423 - Chemistry of inorganic compounds
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER