| Ref. code: | Nd.01-02-17-01 |
| Ref. code AP: | Nd.01-02-17-01 |
| Creation date(s): | 3/6/1908 |
| Title: | Johannes Knöpfel, in Walzenhausen und Friedrich Weymer, in Arbon, Feuermelder, Patentnummer CH43249 |
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URL for this unit of description |
| URL: | https://query-staatsarchiv.ar.ch/detail.aspx?ID=360407 |
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