| Ref. code: | PAT 3, 85 b |
| Title: | Reinigung von Wasser (Filter 12 d; Reinigung von Dampfkesselspeisewasser und Kesselwasser 13 b, 12-21) |
| Creation date(s): | 5/17/1956 - 1/24/1968 |
| Number: | 18 |
| Level: | Klasse |
| Ref. code AP: | PAT 3, 85 b |
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Usage |
| Permission required: | [Leer] |
| Physical Usability: | Uneingeschränkt |
| Accessibility: | [Leer] |
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URL for this unit of description |
| URL: |  https://suche.staatsarchiv.djiktzh.ch/detail.aspx?ID=1451699 |
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