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 specifications open to public inspection.
| Identifier | ExFiles\Box 147\2\ scan0332 | |
| Date | 14th May 1940 | |
| OUTSIDE PATENT SEARCHES REPORT BY CLAREMONT HAYNES & CO. WEEK ENDING 14th May 1940 SPECIFICATIONS not yet accepted which have become open to public inspection. No. Patentee Title 25422 General Motors Corporation Electric circuit-controlling devices 28492 Piaggio & Co. Soc. Anon. and C. De Ascanio Variable pitch airscrews 29002 Fabrica Italiana Magneti Marelli Arrangement for mounting the circuit breaker in ignition magnetos for internal combustion engines 29355 Maybach-Motorenbau Ges. Power transmission mechanism 1940 5931 F.{Mr Friese} Porsche Vehicle Bodies Copies of these, or extracts from them can be obtained if desired | ||