File:Charles Gordon Curtis.jpg
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| Description |
English: Charles Gordon Curtis, inventor of the Curtis steam turbine
Deutsch: Charles Gordon Curtis, Erfinder der Curtis-Turbine |
| Date | approximately 1910 (Curtis, born 1860, is about 50 years old on the photo) |
| Source | http://www.edisonexploratorium.org/bio/curtis.htm |
| Author | Photographer anonymous |
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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, 1931.
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The author of this work is anonymous and this work was made available to the public more than 50 years ago. According to the Berne convention Art. 7, and the laws of many countries, this work is in the public domain.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:25, 14 October 2008 | | 197 × 300 (10 KB) | Tetris L | {{Information |Description= *en: Charles Gordon Curtis, inventor of the Curtis steam turbine *de: Charles Gordon Curtis, Erfinder der Curtis-Turbine |Source=http://www.edisonexploratorium.org/bio/curtis.htm |Date=approximate |
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