Drilldown: Patents

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Patents > Office: DE & Grant date: 1800 - 1899 & Number of figures: 3-4

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Inventors:
Georg Wellner (2)
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LTA (18) · propulsion (12) · balloon (6) · navigation (6) · propeller (5) · frame (5) · control (4) · gas (3) · car (3) · dirigible (3) · airship (2) · balloons (2) · kite (2) · design (2)
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