2488137

Information

• Patent Grant
• 2488137

• References
• Source

• Patent Number

  2,488,137

• Date Filed

  Not available

• Date Issued

  Tuesday, November 15, 1949
  75 years ago

• CPC

  • G11B17/16 - by mechanism in stationary centre post
  • G11B17/18 - by mechanism operating on the edge of the disc record

• US Classifications

  • 369 - Dynamic information storage or retrieval