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Patents > Inventor country: DE & Patent agent : Haseltine, Lake & Co. or L. Chassevent

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airplane (9) · LTA (4) · frame (4) · aerodynamics (3) · airfoil (3) · airship (3) · wings (3) · construction (3) · design (3) · None (2) · steering (2) · propellers (2) · lift (2) · fabric (2) · Subsystem (2) · envelope (2) · navigation (2) · Control (2) · camber (2) · balloon (2)
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