| EBA 9/213 |
Ferrum Nr. 52 |
1981 |
File: 5 volumes |
public |
|
| EBA 9/245 |
Ferrum Nr. 84 |
2012 |
File: 5 volumes |
public |
|
| EBA 9/48 |
Technikgeschichtliche Tagung 2007-2012 |
2007 – 2012 |
File: 1 file |
Standard period of protection |
|
| 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 |
|
