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Identifier | Title | Date | Level of description | Other information | Image | |
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GFA 41/139.1 | Piping Systems: plant Seewis, purity room | 1991 | Item: 1 photo | Digitized | Protection period until: 2042 | ||
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GFA 41/139.2 | Piping Systems: Use in waste incineration plants | 1993 | Item: 1 photo | Digitized | Protection period until: 2044 |
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