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Patents > Inventor country: BE & Supplementary to patent : Patent AT-1911-57225 or None & Number of figures: 8-50000000

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airplane (7) · Propellers (6) · propulsion (5) · wings (3) · navigation (3) · LTA (3) · design (2) · lift (2) · aerodynamics (2) · hybrid (2) · control (2) · airship (2) · compartments (2)
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