File:Vion radiant energy US Patent 28793.png
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| Description |
English: Method of obtaining atmospheric electricity and terrestrial magnetism and it's industrial applications |
| Date | |
| Source | U.S. Patent 28793 "Improved method of using atmospheric electricity", June 1860 |
| Author | H. Charles Vion |
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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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| current | 13:26, 14 July 2011 | | 628 × 1,026 (66 KB) | Reddi~commonswiki (talk | contribs) |
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