2417590

Information

• Patent Grant
• 2417590

• References
• Source

• Patent Number

  2,417,590

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1947
  77 years ago

• CPC

  • G11B3/5845 - means connected to a separate arm

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 029 - Metal working
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER