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).
Confirming the filing of a complete specification and blueprint for the Dual Induction System patent application.
| Identifier | ExFiles\Box 147\2\ scan0077 | |
| Date | 25th September 1939 | |
| 1247. Rm.{William Robotham - Chief Engineer} BY/Mr. C.T.Salt. NW.{N. Walker - Patents}3/VL.{V. Lewis / Mr Valentine}25.9.39. Dual Induction System. British Appln. No. 27270/38. We send herewith a copy of the above Complete Specification which was filed on the 19th instant, together with a blueprint of the drawing. N.W. | ||