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 patents with their number, patentee, and title, relating to metal refining.
| Identifier | ExFiles\Box 147\1\ scan0264 | |
| Date | 12th August 1937 guessed | |
| No. Name of Patentee. Title. 469,347 I.G.Farbenindustrie Method of re-melt- A.G ing and refining magnesium and light metal alloys containing magnesium 469,361 Aluminium-Industrie- Improvements in A.G or relating to the Electrolytic refining of alum- ium. ----------------------------- | ||