| Signature mark | NL 093/320 |
|---|---|
| Subject | Brief (1) |
| Author |
Dehnst, Julius
|
| Recipient |
Caro, Heinrich
|
| Title | Dehnst, Julius an Caro, Heinrich |
| Contains | Ablehung einer Patentanmeldung über Dioxylenzoylbenzosäure durch das Kaiserliche Patentamt |
| Places | Köln |
| Duration | 09.09.1889 |
| Scope | 1 Bl. hs. |
| Subject area | Chemie <210> |
| Rights notice | CC BY-SA 4.0 |
