File:Villalba power station, Francis Trubine by charmilles.png
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editDescriptionVillalba power station, Francis Trubine by charmilles.png |
Deutsch: Francis-Sprialturbine der Ateliers des Charmilles SA für das Kraftwerk in Villalba de la Sierra in Spanien. Leistung: 8000 PS. Fallhöhe: 140 m |
Date |
circa 1926 date QS:P,+1926-00-00T00:00:00Z/9,P1480,Q5727902 |
Source | Führer durch die Schweizerische Wasserwirtschaft, 1. Band, S. 579 |
Author | Unknown authorUnknown author |
Licensing
editPublic domainPublic domainfalsefalse |
The author of this image from Switzerland is unknown, and the image was published at least 70 years ago. It is therefore in the public domain in Switzerland by virtue of Art. 31 of the Swiss Copyright Act.
Note that this applies only if a reliable source is cited to indicate that the author is not publicly known; just not knowing who the author is is not enough to qualify the image as public domain. This image may not be in the public domain in countries other than Switzerland. čeština | Deutsch | English | français | italiano | македонски | Nederlands | українська | +/− |
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current | 17:44, 12 April 2019 | 1,615 × 1,034 (1.53 MB) | Pechristener (talk | contribs) |
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Horizontal resolution | 49.21 dpc |
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Vertical resolution | 49.21 dpc |