File:PopSci Nov 1935 pg31.jpg
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[edit]DescriptionPopSci Nov 1935 pg31.jpg |
Article, describing vertical-axis wind turbine. U.S. patent number: 2005470 Issue date: Jun 18, 1935 Inventor: Olof K. Olson, Kansas City, Missouri. |
Date | |
Source |
Popular Science Monthly magazine, page 31. |
Author | Popular Science Monthly magazine |
Permission (Reusing this file) |
1935 copyright expired; not renewed, based on listings in the Catalog of Copyright Entries, published by the US Copyright Office. |
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current | 01:18, 20 June 2010 | ![]() | 870 × 969 (235 KB) | Apddraig (talk | contribs) | {{Information |Description= Article, describing vertical-axis wind turbine. |Source= Popular Science magazine, page 31. |Date= November, 1935 |Author= Popular Science magazine |Permission= 1935 copyright expired; not renewed, based on listings in the Cata |
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