2511444

Information

• Patent Grant
• 2511444

• References
• Source

• Patent Number

  2,511,444

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1950
  74 years ago

• CPC

  • G11B3/48 - Needles contains no documents

• US Classifications

  • 369 - Dynamic information storage or retrieval