Drilldown: Patents

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Patents > Year granted: 1890 - 1899 & Citations from after 1930: None & Number of figures: 5-7

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Inventors:
Joseph Hofmann (3) · Federico Capone (2) · August Riedinger (2) · Richard Czygan (2) · Fritz Alexander Jone (2) · James Constant Walker (2) · Carl Friedrich Billwiller (2) · Andreas Ozegowski (2)
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None (17) · August Riedinger (2) · Richard Czygan (2) · Fritz Alexander Jone (2) · Carl Friedrich Billwiller (2) · Federico Capone (2) · Joseph Hofmann (2)
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National tech categories:
DE 77 (22) · None (14) · GB 4 aëroplanes (5) · GB 4 without buoyant (3) · USPC 244/28 (3) · GB 4 propel & steer (3) · HU V/h (3) · USPC 244/3.23 (2) · CH 115 (2) · USPC 244/99 (2) · USPC 244/153R (2) · USPC 244/30 (2) · CH 12 (2) · GB 4 framework (2)
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