| Ref. code: | Nd.01-02-16 |
| Ref. code AP: | Nd.01-02-16 |
| Creation date(s): | 11/26/1909 - 8/1/1942 |
| Title: | Erfindungsklasse 120, Fernschreib- und Sprechwesen |
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URL for this unit of description |
| URL: | https://query-staatsarchiv.ar.ch/detail.aspx?ID=360358 |
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