1. Add MS 89294/5 Reference (shelfmark): Add MS 89294/5 Title: LEO computer patent: Folders Scope & Content: Leather cover and card folder housing for submission of the patent ‘A Short Description of the EDSAC Type Calculator Circuits used in LEO by J.M.M.Pinkerton, M.A.,Ph.D’. (25 July, 1951). Collection Area: Western Manuscripts Languages: English Date Range: 1951 Extent: 1 file