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 patent applications with their corresponding patentees and titles.
| Identifier | ExFiles\Box 147\1\ scan0281 | |
| Date | 21th October 1937 guessed | |
| No. Name of Patentee. Title. 23680 Vereinigte Deutsche Electrically Metallwerke A.G. controlled switching devices for variable pitch propellers. 23681 " " 23795 C.H.Verity Variable geared drives. 23738 W von Wedelstaedt Spring suspensions for power driven etc., 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. | ||