2113390

Information

• Patent Grant
• 2113390

• References
• Source

• Patent Number

  2,113,390

• Date Filed

  Not available

• Date Issued

  Tuesday, April 5, 1938
  86 years ago

• CPC

  • G11B17/14 - by mechanism in rotating centre post
  • Y10T74/2126 - and bearings

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 074 - Machine element or mechanism