File:PopSci Nov 1935.jpg
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Summary[edit]
| Description |
Periodical coverpage, (erroneously) depicting vertical-axis wind turbine operation. Issue date: Jun 18, 1935 Inventor: Olof K. Olson, Kansas City, Missouri. |
| Date | |
| Source |
Popular Science Monthly magazine |
| 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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This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:05, 20 June 2010 | | 685 × 950 (130 KB) | Apddraig (talk | contribs) | {{Information |Description= Periodical coverpage |Source= Popular Science magazine |Date= November, 1935 |Author= |Permission= 1935 copyright expired; not renewed, based on listings in the Catalog of Copyright Entries, published by the US Copyright Office |
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