1624823

Information

• Patent Grant
• 1624823

• References
• Source

• Patent Number

  1,624,823

• Date Filed

  Not available

• Date Issued

  Tuesday, April 12, 1927
  97 years ago

• CPC

  • G11B11/16 - using recording by mechanical cutting, deforming or pressing

• US Classifications

  • 369 - Dynamic information storage or retrieval