2633405

Information

• Patent Grant
• 2633405

• References
• Source

• Patent Number

  2,633,405

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1953
  72 years ago

• CPC

  • G11B3/48 - Needles contains no documents

• US Classifications

  • 346 - Recorders
  • 347 - Incremental printing of symbolic information
  • 360 - Dynamic magnetic information storage or retrieval