Drilldown: Patents

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Patents > Year filed: 1919 & Year granted: 1920 - 1929 & Number of diagram pages: 1

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airplane (14) · wings (6) · frame (6) · subsystem (6) · propeller (4) · propellers (4) · marine (3) · Aerodynamics (3) · design (3) · piloting (2) · compartments (2) · LTA (2) · lift (2) · propulsion (2)
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Showing below up to 29 results in range #1 to #29.

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