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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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None (14) · airplane (9) · stability (9) · design (4) · Subsystem (4) · wings (4) · landing (3) · propellers (3) · fuselage (3) · parachute (3) · construction (2) · sustentation (2) · automatic stability (2) · chassis (2) · Propulsion (2) · steering (2) · frame (2) · rudder (2) · shock-absorbers (2) · instrument (2)
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