| Identifier | Title | Date | Level of description | Other information | |
|---|---|---|---|---|---|
| GFA 12/FI.0 | 0. Frühe Produktion, Dokumentation, Reportagen // Early production, documentation, reports | 1930 | Class | ||
| GFA 12/FI.9 | 9. Hilfsmittel für die Rohrmontage HR, Rohrverbindungstechnik RVT // Tools for pipe assembly, pipe jointing technology | 1949 | Class | ||
| GFA 12/FI.9.1 | 9.1. Gewindeschneidapparate und Normalzubehör // Thread-cutting machines and normal accessories | 1951 | Class |
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