Drilldown: Patents

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Patents > Publication date: 1920 - 1929 & National tech categories: AT 77d & Number of text pages: 1-2

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airplane (9) · military (4) · frame (3) · subsystem (3) · propulsion (3) · design (3) · engine (3) · wings (2) · stability (2) · radiator (2) · propellers (2) · propeller (2) · parachutes (2) · HTA (2) · marine (2) · construction (2) · electricity (2) · biplane (2) · bombing (2)
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Showing below up to 23 results in range #1 to #23.

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