3042413

Information

• Patent Grant
• 3042413

• References
• Source

• Patent Number

  3,042,413

• Date Filed

  Not available

• Date Issued

  Tuesday, July 3, 1962
  62 years ago

• CPC

  • G11B3/68 - Record carriers
  • G11B3/72 - Groove formations

• US Classifications

  • 369 - Dynamic information storage or retrieval