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Patents > Year filed: 1913 & Inventor country: DE & Publication date: 1913

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airplane (8) · Stability (6) · propulsion (4) · LTA (4) · None (3) · fabric (2) · Sustentation (2) · Safety (2) · propellers (2) · parachutes (2) · infrastructure (2) · hydroaeroplane (2) · frame (2) · wings (2) · design (2) · airship (2)
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Showing below up to 27 results in range #1 to #27.

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