Hits 1-6 within 3 documents
| technical development (3) |
| Technik (1) |
| Technikgenese (1) |
| Technikgeschichte (1) |
| technische Entwicklung (3) |
| twentieth century (1) |
| technical development (3) |
| Technik (1) |
| Technikgenese (1) |
| Technikgeschichte (1) |
| technische Entwicklung (3) |
| twentieth century (1) |