File:Piccard Pictet Turbine.jpg
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| Description |
Deutsch: Kleintrubine mit Servoregeler in einem Inserat der Ateliers Piccard-Pictet & Cie. |
| Date | circa 1910 |
| Source | Bulletin technique de la Suisse romande, Band 37, 1911, Seite 7 |
| Author | circa 1910 |
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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.
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:47, 2 October 2018 | | 336 × 538 (37 KB) | Pechristener (talk | contribs) | == {{int:filedesc}} == {{Information |description={{de|Kleintrubine mit Servoregeler in einem Inserat der Ateliers Piccard-Pictet & Cie. }} |date={{otherdate|ca|1910}} |source=[http://doi.org/10.5169/seals-28853 Bulletin technique de la Suisse romande, Band 37, 1911], Seite 7 |author={{otherdate|ca|1910}} |permission= |other versions= }} {{PD-Switzerland-old-unknown}} {{PD-old-auto-1923}} Category:Francis turbines |
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