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Patents > Inventor country : AT or PY & Publication date: 1913

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airplane (17) · stability (7) · parachutes (7) · chassis (7) · wings (5) · wheels (5) · frame (5) · design (4) · propellers (4) · Illumination (4) · None (4) · landing (4) · LTA (3) · construction (3) · safety (3) · projectile (3) · ornithopter (3)
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