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File:United States patent 285584.pdf

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English: US Patent 285584 - "Turbine for Steam and Other Motive Power" - by Gustaf de Laval
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Source http://www.google.com/patents?id=b5tRAAAAEBAJ
Author Gustaf de Laval
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Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

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current03:33, 27 September 2011Thumbnail for version as of 03:33, 27 September 20111,158 × 1,702, 3 pages (98 KB)Inductiveload (talk | contribs){{Information |Description={{en|US Patent 285584 - "Turbine for Steam and Other Motive Power"}} |Source=http://www.google.com/patents?id=b5tRAAAAEBAJ |Date=1883 |Author=Gustaf de Laval |Permission={{PD-US-patent-no notice}} |other_versions= }} [[Category

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