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 including patent number, patentee, and title.
| Identifier | ExFiles\Box 147\1\ scan0098 | |
| Date | 23th December 1936 guessed | |
| No. Name of Patentee. Title. 457,823 Charles Richard Fairey Improvements in or relating to Blades for Airscrews and the like. 457,826 Leslie George Day, Magnesium Castings and Products Ltd and High Duty Alloys Ltd. Improvements in and relating to the Melting,Refining and Preparation for Casting of Magnesium and its alloys 457,829 William John Tennant (A Communication from Tatra Works Ltd) Improvements in or relating to the Drive and Bearings for Swinging Half Axles for Motor Vehicles. 457,849. George Constantinesco An Improved Gear-ratio Indicator and/or Control Device 457,850 ditto Improvements in or relating to Gear Changing Mechanism. | ||