Drilldown: Patents

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Patents > Family year: 1800 - 1899 & First filing: No & Number of claims: 5-80

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LTA (18) · propulsion (14) · propeller (13) · frame (12) · navigation (12) · rudder (11) · car (10) · hybrid (6) · flapping (6) · wheels (5) · airfoil (4) · balloon (4) · stability (4) · compartments (3) · design (3) · human-powered (3) · airplane (3)
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