| RefNo | FS/2/10/2 |
| Previous numbers | FS/14/1/11A-B |
| Level | File |
| Title | Correspondence relating to Patents, part 1 |
| Date | 1924-1930 |
| Description | File split into 2 groupings. File includes index to each individual letter.
Correspondence mostly with the German Patent Office and Meffert & Sell (Patent Lawyers) on patents for a high pressure control valve. |
| Language | German |
| Extent | 1 file |
| Format | Manuscript and typescript documents |
| AccessStatus | Open |