| Signature mark | FA 004/4858 |
|---|---|
| Subject | Gutachten (1) |
| Title | Gutachten des Polytechnischen Vereins für das Hauptamt für Technik zu einem Pressverfahren für Metalle und Kunststoffe von Jean Hofer aus Refrath |
| Duration | 1937 |
| Scope | 2 Bl. ms. |
| Subject area | Metallbearbeitung. Spannlose Werkzeugmaschinen. Pressen <640.05.03>; Technische Chemie. Kunststoffe und Kautschuk <220.03> |
| Rights notice | CC BY-SA 4.0 |
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