Drilldown: Patents

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Patents > Year filed: 1890 - 1899 & Inventor country: DE & Number of figures: 7-40

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LTA (12) · propulsion (12) · frame (8) · navigation (8) · balloon (7) · propeller (5) · stability (4) · car (4) · flapping (3) · None (3) · wheels (3) · cargo (3)
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