File:Patent issue -1329559 Tesla Sign.png

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Patent_issue_-1329559_Tesla_Sign.png (350 × 72 pixels, file size: 1 KB, MIME type: image/png)

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Description
English: An excerpt from US patent issue #1329559, Sign
Date
Source http://www.google.com/patents?id=Lt1PAAAAEBAJ&printsec=abstract&zoom=4&source=gbs_overview_r&cad=0#v=onepage&q&f=false
Author Nikola Tesla, died 1943

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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.

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