Drilldown: Patents

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Patents > Year filed: 1900 - 1909 & Inventor country : DE or NL & Number of claims: 3-4 & Number of figures: 5-6

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LTA (10) · frame (7) · Airship (6) · propulsion (5) · Design (4) · Construction (3) · subsystem (3) · Aerodynamics (3) · ascension (3) · balloon (3) · parachute (2) · propeller (2) · navigation (2) · hybrid (2) · whole (2) · Propellers (2) · flapping (2) · dirigible (2)
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