Drilldown: Patents

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Patents > Grant date: 1880 - 1889 & Number of figures: 2-3

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Otto Lilienthal (3) · William Franklin Fleharty (2) · Frederick William Brearey (2) · Ernst Georg August Baumgarten (2)
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None (7) · DE 77 (7) · USPC 244/153R (3) · USPC 244/30 (3) · USPC 244/3.23 (2) · DE 13 (2) · USPC 244/155R (2)
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