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 corresponding numbers, patentees, and titles.
| Identifier | ExFiles\Box 147\1\ scan0193 | |
| Date | 8th May 1937 guessed | |
| No. Name of Patentee. Title. 10948 Siemens Apparata und Automatic hydraulically Maschinen Ges. operated adjustable air- propellers. 10949 " " 10950 " " (cognate with 10948) 11317 Soc.Generale des Carburateurs Boost controls Zenith. for internal combustion engines. 10963 } J.G.Swan Variable speed gears. 11047 } for motor vehicles. --------------------------------- It should be noted that it is not possible to obtain further information regarding the above until or unless the applications are completed and published. [Watermark: ALLSTRONG LINEN] | ||