| Ref. code: | Nd.01-03-15-01 |
| Ref. code AP: | Nd.01-03-15-01 |
| Creation date(s): | 4/29/1958 |
| Title: | Firma Güttinger, in Niederteufen, Schaltung zur Berechnung des Logarithmus eines Quotienten zweier elektrischer Ströme, Patentnummer CH361681 |
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URL for this unit of description |
| URL: | https://query-staatsarchiv.ar.ch/detail.aspx?ID=360514 |
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