The German aviation engineer who invented the very promising eponymous rotary sail (Wikipedia).
Born | 1 November 1885 |
Died | 29 December 1961 |
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Born | 1 November 1885 |
Died | 29 December 1961 |
ID Numbers
- OLID: OL2440811A
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April 12, 2016 | Edited by Agnes Reid | Very brief bio & Wikipedia link added |
September 6, 2008 | Edited by RenameBot | fix author name |
April 1, 2008 | Created by an anonymous user | initial import |