Drilldown: Patents

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Patents > Inventor country: DE & Family year: 1800 - 1899 & Number of figures: 7-90

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LTA (18) · propulsion (10) · navigation (9) · airship (8) · balloon (6) · frame (6) · None (5) · control (5) · car (4) · flapping (3) · marine (3) · hybrid (3) · stability (3) · metal (2) · propeller (2) · rudder (2) · steering (2) · structure (2)
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