Drilldown: Patents

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Patents > Year filed: 1900 - 1909 & Inventor country: CH & IPCs: None

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LTA (11) · None (11) · propeller (8) · navigation (7) · airplane (6) · frame (5) · airfoil (4) · balloon (4) · stability (3) · propulsion (3) · design (3) · flapping (2) · rigid (2) · pressure (2) · parachute (2) · gas (2) · whole (2) · car (2) · compartments (2)
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