Record Name | Ans_03708 |
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Photographer | Unbekannt |
Dating | 1950-1955 |
Caption | Top left: polarized "telegraph relay" with two stable layers. Top right: normal relay of the switching technology. Bottom: further developed miniature relay. |
Caption (German) | Oben links: polarisiertes "Telegraphen-Relais" mit zwei stabilen Lagen. Oben rechts: normales Relais der Vermittlungstechnik. Unten: weiterentwickelte Miniaturrelais. |
Physical description | Fotografie : Silbergelatine-Abzug |
Format | Spezialmass |
Special size | 5,5 x 8,5 cm |
Colour | schwarz/weiss |
Orientation | Hochformat |
Categories |
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License | Public Domain Mark |
Copyright notice | ETH-Bibliothek Zürich, Bildarchiv / Fotograf: Unbekannt / Ans_03708 / Public Domain Mark |
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