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).
Report by Claremont Haynes & Co on outside patent searches for the week ending 12th August 1937.
| Identifier | ExFiles\Box 147\1\ scan0259 | |
| Date | 12th August 1937 | |
| OUTSIDE PATENT SEARCHES REPORT BY CLAREMONT HAYNES & CO Week ending 12th August 1937. SPECIFICATIONS WHICH HAVE BECOME (Opposition date 24th September 1937) ------------------ No. Name of Patentee. Title. 468,783 Cedric Crosthwaite Change speed gearing 468,903 William Guertler Improvements in and relating to alloys containing iron chromium and aluminium articles made therefrom 468,969 Samuel John Frost Improvements in or relating to variable speed gearing. 468,008 Telefunken Gesell- Improvements in schaft fur Drahtlose or relating to telegraphie m.b.H electrical circuit arrange- ments embodying automatic gain control means. ------------------------ | ||