File:Vion radiant energy US Patent 28793.png

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Summary

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

Licensing

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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1 June 1860Gregorian

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current14:26, 14 July 2011Thumbnail for version as of 14:26, 14 July 2011628 × 1,026 (66 KB)wikimediacommons>Reddi~commonswiki

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