Drilldown: Patents

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Patents > Inventor country : GB or HU or NL & Publication date: 1911 & Assigned to: None & IPCs : IPC B64C3/54 or None

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airplane (15) · design (8) · Whole (8) · subsystem (7) · stability (7) · Propulsion (7) · propellers (7) · frame (7) · helicopter (4) · wings (3) · lift (3) · automatic stability (3)
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Showing below up to 27 results in range #1 to #27.

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