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Patents > Patent agent : Armengaud jeune or Dupont et Elluin or Herbert Haddan & Co. & Number of figures: None

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Georg Wellner (3) · Clément Ader (3) · Henri-Marie Coandă (2) · Lucien Chauvière (2) · Maurice Mallet (2) · Adolphe Clément-Bayard (2) · Robert Esnault-Pelterie (2)
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airplane (10) · construction (10) · design (8) · propulsion (8) · LTA (7) · navigation (6) · balloon (5) · aerodynamics (5) · propellers (4) · aerostat (3) · frame (3) · airfoil (3) · sail (3) · fuselage (3) · dirigible (3) · possibly flapping (3)
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