Drilldown: Patents

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Patents > Inventor country: DE & Family year: 1912 & Number of figures: 3-4

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airplane (21) · stability (11) · frame (11) · Design (8) · Construction (7) · wings (6) · Aerodynamics (6) · Navigation (5) · LTA (5) · equilibrium (4) · automatic stability (4) · propeller (4) · balloon (3) · gyroscope (3) · dirigible (3) · propellers (3) · airship (3)
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