2923642

Information

• Patent Grant
• 2923642

• References
• Source

• Patent Number

  2,923,642

• Date Filed

  Not available

• Date Issued

  Tuesday, February 2, 1960
  65 years ago

• CPC

  • G11B5/718 - at least one on each side of the base layer
  • G11B5/74 - Record carriers characterised by the form
  • Y10S428/90 - Magnetic feature
  • Y10S428/928 - Magnetic property
  • Y10T428/265 - 1 mil or less
  • Y10T428/31681 - Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 428 - Stock material or miscellaneous articles
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER