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Patents > Inventor country: DE & Publication date: 1913 & Number of figures: 4-5

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airplane (9) · frame (7) · propulsion (6) · design (6) · subsystem (5) · LTA (4) · Airship (4) · wings (3) · construction (3) · stability (2) · Propellers (2) · Hydroplane (2) · Hydroaeroplane (2) · safety (2) · Infrastructure (2) · flapping (2) · navigation (2)
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Showing below up to 27 results in range #1 to #27.

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