3772081

Information

• Patent Grant
• 3772081

• References
• Source

• Patent Number

  3,772,081

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1973
  51 years ago

• CPC

  • B29C43/02 - of articles of definite length
  • G11B5/738 - characterised by the intermediate layer
  • G11B5/74 - Record carriers characterised by the form
  • B29L2017/003 - Records or discs
  • Y10T428/264 - Up to 3 mils
  • Y10T428/31674 - Including natural oil or gum or rosin [e.g., linoleum, etc.]
  • Y10T428/31786 - Of polyester [e.g., alkyd, etc.]

• US Classifications

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