3686939

Information

• Patent Grant
• 3686939

• References
• Source

• Patent Number

  3,686,939

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1972
  52 years ago

• CPC

  • G11B3/28 - providing transverse bias parallel to record

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 073 - Measuring and testing
  • 177 - Weighing scales