Drilldown: Patents

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Patents > Year filed: 1919 & Family year: 1900 - 1999

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airplane (14) · subsystem (8) · propellers (7) · propeller (5) · frame (4) · Wings (4) · Aerodynamics (4) · fuselage (4) · lift (3) · control (3) · None (3) · propulsion (3) · steering (2) · marine (2) · wing (2) · hélice (2) · stability (2) · LTA (2) · automatic stability (2) · wood (2)
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Showing below up to 40 results in range #1 to #40.

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