| Ref. code: | PAT 2, S 120 f |
| Title: | Fernschreib- und Sprechwesen ohne fortlaufenden Leitungsdraht |
| Creation date(s): | 12/8/1917 - 3/16/1956 |
| Number: | 378 |
| Level: | Klasse |
| Ref. code AP: | PAT 2, S 120 f |
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Usage |
| Permission required: | [Leer] |
| Physical Usability: | Uneingeschränkt |
| Accessibility: | [Leer] |
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URL for this unit of description |
| URL: |  https://suche.staatsarchiv.djiktzh.ch/detail.aspx?ID=1365269 |
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