This information contains sensitive data in regards to people or materials and archival reproductions not within the public domain, and are subjected to retention periods due to archival and data privacy legislations or are subjected to restricted user licenses.
In case of justified interest, you can request written information. To do that use the function “archive inquiry” and fill out the inquiry form.
If you are working on a research project or in political education, you can request a user account for the database via an archive inquiry.
10.12b Einzelne Branchen der Industrie und des Handwerks
31.10 Verfahrenstechnik, Technische Chemie