| Identifier | Title | Date | Level of description | Other information | |
|---|---|---|---|---|---|
| GFA 11/800092 | Fittings und Installationsmethoden | 1980 | Item: 1 photo | digitized | prolonged period of protection | |
| GFA 11/800388 | Steckmuffenfittings aus PVC | 1980 | Item: 1 photo | digitized | prolonged period of protection | |
| GFA 11/811037-811059 | Anwendungsbeispiele im Graben | 1981 | Item: 9 photos | digitized | prolonged period of protection | |
| GFA 11/811040-811051 | Anwendungsbeispiele im Graben | 1981 | Item: 12 photos | digitized | prolonged period of protection | |
| GFA 11/820654 | Verlegungsarbeiten von Wasserversorgungsprojekten Indonesien | 1982 | Item: 24 photos | digitized | prolonged period of protection | |
| GFA 11/820819 | Anwendungen im Graben für die Wasserversorgung | 1982 | Item: 1 photo | digitized | prolonged period of protection | |
| GFA 11/821083 | KS Schieberkreuz aus PVC | 1982 | Item: 1 photo | digitized | prolonged period of protection | |
| GFA 11/840954-840957 | Schieberkranz GF Absperrschieber | 1984 | Item: 4 photos | digitized | prolonged period of protection | |
| GFA 11/840970-840977 | Schieberkranz GF Absperrschieber | 1984 | Item: 8 photos | digitized | prolonged period of protection | |
| GFA 11/840992-840993 | Schieberkranz GF Absperrschieber | 1984 | Item: 2 photos | digitized | prolonged period of protection | |
| GFA 11/841292 | Symbol für Wasserversorgung | 1984 | Item: 1 photo | digitized | prolonged period of protection | |
| GFA 11/841293 | GF KS-Schieber im Anlagenbau | 1984 | Item: 1 photo | digitized | prolonged period of protection | |
| GFA 11/850144 | Foto für GF Inserat: Entsalzungsanlage | 1985 | Item: 1 photo | digitized | prolonged period of protection | |
| GFA 11/851355-851356 | Dänemark | 1985 | Item: 2 photos | digitized | prolonged period of protection | |
| GFA 11/851389-851390 | Mönchengladbach BRD | 1985 | Item: 2 photos | digitized | prolonged period of protection | |
| GFA 11/860070 | Montage Verlegung | 1986 | Item: 1 photo | digitized | prolonged period of protection | |
| GFA 11/861037-861038 | Verlegung von Kunststoff-Schiebern und Steckmuffen-Formstücken aus PVC | 1986 | Item: 2 photos | digitized | prolonged period of protection | |
| GFA 11/881612-881613 | PVC-Schieber mit Elgef-Muffen und PE-Rohren als Streckenschieber | 1988 | Item: 2 photos | digitized | prolonged period of protection | |
| GFA 11/881614-881621 | Elgef Elektroschweisssystem | 1988 | Item: 8 photos | digitized | prolonged period of protection | |
| GFA 11/881677-881685 | Schieberkranz, bestehend aus PVC-Schiebern | 1988 | Item: 9 photos | digitized | prolonged period of protection | |
| GFA 11/891769-891776 | Kantonsschülerinnen und Schüler unter Leitung von Kantilehrer Hans Wohlen | 1989 | Item: 8 photos | digitized | prolonged period of protection | |
| GFA 11/891777 | Kantonsschülerinnen und Schüler unter Leitung von Kantilehrer Hans Wohlen | 1989 | Item: 24 photos | digitized | prolonged period of protection | |
| GFA 11/910061 | VKI-Kurs-Schweissen und Verlegen | 1991 | Item: 30 photos | digitized | prolonged period of protection | |
| GFA 11/910062-910066 | VKI-Kurs-Schweissen und Verlegen | 1991 | Item: 5 photos | digitized | prolonged period of protection | |
| GFA 11/910067-910068 | VKI-Kurs-Schweissen und Verlegen | 1991 | Item: 2 photos | digitized | prolonged period of protection | |
| GFA 11/910069-910076 | VKI-Kurs-Schweissen und Verlegen | 1991 | Item: 8 photos | digitized | prolonged period of protection | |
| GFA 11/910259 | PVC-Schieber im Einsatz | 1991 | Item: 1 photo | digitized | prolonged period of protection | |
| GFA 11/911298-911301 | Ausgebaute Schieberzunge | 1991 | Item: 4 photos | digitized | prolonged period of protection | |
| GFA 11/911473 | Vormontage eines Schieberkreuzes | 1991 | Item: 1 photo | digitized | prolonged period of protection | |
| GFA 11/920954-920955 | PE-VAS mit schwarzem Rohr | 1992 | Item: 2 photos | digitized | prolonged period of protection | |
| GFA 11/930100-930104 | Wasserversorgung "Bargen" | 1993 | Item: 5 photos | digitized | prolonged period of protection | |
| GFA 11/930360-930363 | Ventilanbohrschellen | 1993 | Item: 4 photos | digitized | prolonged period of protection | |
| GFA 11/930364-930367 | Wasserversorgung "Hemmental" | 1993 | Item: 5 photos | digitized | prolonged period of protection | |
| GFA 11/930553 | Verlegung eines Schieberkreuzes | 1993 | Item: 1 photo | digitized | prolonged period of protection |
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