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Patents > Filing date: November 1911 & National tech categories: FR 6.4

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None (3) · Mathias Hartz (2) · Armand Barre (2) · Adolf Freiherr Odkolek von Augezd (2)
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None (4) · Mathias Hartz (2) · Armand Barre (2)
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airplane (18) · stability (15) · wings (8) · design (7) · subsystem (6) · landing (5) · fuselage (5) · frame (5) · wheels (4) · propellers (4) · parachute (4) · None (4) · chassis (4) · automatic stability (4) · construction (3) · incidence (3) · propulsion (3) · aerodynamics (3) · equilibrium (3) · shock-absorbers (3)
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