2643887

Information

• Patent Grant
• 2643887

• References
• Source

• Patent Number

  2,643,887

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1953
  71 years ago

• CPC

  • G11B3/14 - by using effects of gravity or inertia
  • G11B3/04 - Multiple, convertible, or alternative transducing arrangements
  • G11B3/31 - Construction of arms

• US Classifications

  • 369 - Dynamic information storage or retrieval