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Patents > Filing date: October 1909 & National tech categories : FR 6.4 or HU V/h

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Airplane (14) · design (9) · LTA (7) · aerodynamics (6) · stability (5) · frame (5) · None (4) · Construction (4) · control (4) · wings (4) · equilibrium (3) · Propulsion (3) · incidence (2) · biplane (2) · whole (2) · Subsystem (2) · Propellers (2) · navigation (2) · Chassis (2) · landing (2)
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