| RefNo | FS/2/10/4 |
| Previous numbers | FS/14/1/11E-F |
| Level | File |
| Title | Correspondence relating to Patents, part 3 |
| Date | 1924-1930 |
| Description | File split into 2 groupings. File includes index to each individual letter.
Includes: correspondence on the commercial use of a kilovoltmeter invented by Simon and Lange.
Correspondents include: Dr M Jona and Kock & Sterzel (manufacturers). |
| Language | English and German |
| Extent | 1 file |
| Format | Manuscript and typescript documents |
| AccessStatus | Open |