Drilldown: Patents

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Patents > Inventor country: DE & Publication date: 1911 & Number of figures: 4-5

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Control (5) · Airship (5) · Propellers (5) · design (5) · construction (5) · Subsystem (4) · frame (4) · heavier-than-air (3) · Airplane (3) · propulsion (3) · chassis (3) · whole (2) · stability (2) · elevator (2) · wood (2)
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