| Ref. code: | Nd.01-02-20-01 |
| Ref. code AP: | Nd.01-02-20-01 |
| Creation date(s): | 1/13/1910 |
| Title: | Johann Wittlich, in Herisau, Hufeisen, Patentnummer CH50891 |
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URL for this unit of description |
| URL: | https://query-staatsarchiv.ar.ch/detail.aspx?ID=360420 |
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