3894970

Information

• Patent Grant
• 3894970

• References
• Source

• Patent Number

  3,894,970

• Date Filed

  Not available

• Date Issued

  Tuesday, July 15, 1975
  49 years ago

• CPC

  • G11B5/70668 - containing a dopant

• US Classifications

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