Drilldown: Patents

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Patents > Year granted: 1860 - 1869 & Office: US & Number of claims: 2-8

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military (9) · projectile (8) · propeller (8) · propulsion (7) · marine (6) · LTA (5) · navigation (5) · flapping (4) · parachute (3) · paddle-wheel (3) · balloon (3) · car (3) · helicopter (2) · Human-powered (2) · hybrid (2) · kite (2) · stability (2) · takeoff (2)
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