| RefNo | FS/2/10/3 |
| Previous numbers | FS/14/1/11C-D |
| Level | Item |
| Title | Correspondence relating to Patents, part 2 |
| 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. Also the application for registration of the design of the control / check valve and the certificate of registration. |
| Extent | 1 file |
| Format | Manuscript and typescript documents |
| AccessStatus | Open |