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, listing a specification for friction clutches by General Motors.
| Identifier | ExFiles\Box 147\4\ scan0022 | |
| Date | 25th July 1940 | |
| OUTSIDE PATENT SEARCHES. REPORT BY CLAREMONT HAYNES & CO. Week ending 25th July 1940. SPECIFICATIONS not yet accepted which have become open to public inspection. No. Patentee. Title. 32117 General Motors Friction clutches. Corporation- -------------------- Copy of the above or extract from it can be obtained if desired. | ||