| Ref. code: | Nd.01-02-16-02 |
| Ref. code AP: | Nd.01-02-16-02 |
| Creation date(s): | 8/1/1942 |
| Title: | Hans Zürcher, in Herisau, Tragbarer Einmann-Sende- und Empfangsapparat, Patentnummer CH220879 |
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URL for this unit of description |
| URL: | https://query-staatsarchiv.ar.ch/detail.aspx?ID=360405 |
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