Drilldown: Patents

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Patents > Year filed: 1900 - 1909 & Inventor country : DE or HU or NL & Publication date: 1900 - 1909 & Number of claims: 3-4

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LTA (11) · Design (8) · propulsion (6) · Subsystem (6) · Airship (6) · Propellers (4) · Frame (4) · construction (3) · Balloons (3) · airplane (3) · aerodynamics (3) · Whole (3)
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