3 volumes, 2 files Papers relating to the Ferranti Private Venture Research and the first working oscillogyro
Photocopy of the British Patent documenting the theory and invention by Philpot and Mitchell of improvements in or relating to means for controlling the orientation of gyroscopes and other rotating masses. Application Date: June 2, 1945. Complete Specification Left: July 2, 1946. Complete Specification Accepted: March 22, 1948. Photocopy of Patent Specification 599,826