File:McFarlane Gray's steam steering engine 1868.png
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| Description |
English: John McFarlane Gray's steam steering engine from the Proceedings of the Institution of Mechanical Engineers |
| Date | |
| Source | Bennett, Stuart (1 January 1986) A History of Control Engineering, 1800-1930, IET, pp. 99– ISBN: 978-0-86341-047-5. |
| Author | John McFarlane Gray (7 April 1831 – 14 January 1908) |
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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 | 16:49, 26 August 2014 | | 799 × 1,373 (1.01 MB) | Aymatth2 (talk | contribs) | User created page with UploadWizard |
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