File:Métallurgie du zinc - Coupe transversale d'un four belge à régénérateur Siemens de Birkengang (p. 512).png
Métallurgie_du_zinc_-_Coupe_transversale_d'un_four_belge_à_régénérateur_Siemens_de_Birkengang_(p._512).png (421 × 463 pixels, file size: 77 KB, MIME type: image/png)
Captions
Summary[edit]
DescriptionMétallurgie du zinc - Coupe transversale d'un four belge à régénérateur Siemens de Birkengang (p. 512).png |
Français : Four belge à régénérateur de Carl Wilhelm Siemens utilisé à Birkengang. La combustion se fait dans deux chambres indépendantes, situées entre l'empilement de briques et le laboratoire. Ainsi, la flamme est éloignée des creusets, ce qui permet d'avoir une chauffe homogène des creusets. |
Date | |
Source | Métallurgie du zinc (1905) |
Author | Arthur Jean Baptiste Théodore Édouard LODIN DE LÉPINAY (1849-1914) |
Licensing[edit]
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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Public domainPublic domainfalsefalse |
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer. You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:17, 7 October 2017 | 421 × 463 (77 KB) | Borvan53 (talk | contribs) | User created page with UploadWizard |
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Horizontal resolution | 118.11 dpc |
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Vertical resolution | 118.11 dpc |
File change date and time | 13:42, 23 September 2017 |