From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
List of patents with their respective numbers, patentees, and titles.
| Identifier | ExFiles\Box 147\2\ scan0139 | |
| Date | 30th November 1939 guessed | |
| No. Patentee. Title. E.{Mr Elliott - Chief Engineer} 514,544 The Bristol Aeroplane Co.Ltd., A.H.R.Fedden Improvements in or relating to Multi-cylinder Sleeve-valve Internal-combustion engines < 514,551 The Bristol Aeroplane Co., and Leslie George Frise. Improvements in or relating to apparatus for controlling the movement of a gun Dr. 514,572 Gleason Works Improvements in or relating to the manufacture of gears. HL. 514,594 Seri Holding Societe Anonyme. Process for improving aluminium-beryllium alloys -------------------- | ||