File:Siemens's direct reduction rotary furnace sketch.png
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Siemens's_direct_reduction_rotary_furnace_sketch.png (523 × 362 pixels, file size: 165 KB, MIME type: image/png)
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Summary[edit]
| Description |
Français : Schéma du four de Réduction directe inventé par Carl Wilhelm Siemens, fondé sur le principe d'un tambour rotatif.
English: Sketch of the direct reduction furnace invented by Carl Wilhelm Siemens, based on the revolving drum principle. |
| Date | |
| Source | Principles of metallurgy, p. 129 |
| Author | Arthur Horseman Hiorns (1849-1920) |
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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 70 years or fewer. 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. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:17, 14 July 2016 | | 523 × 362 (165 KB) | Borvan53 (talk | contribs) | gray image |
| 21:15, 14 July 2016 |  | 523 × 362 (256 KB) | Borvan53 (talk | contribs) | User created page with UploadWizard |
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