Drilldown: Patents

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Patents > Office: US & Family year: 1800 - 1899 & Number of claims: 11-50000000

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navigation (15) · LTA (15) · frame (10) · propeller (8) · propulsion (7) · rudder (6) · balloon (6) · military (5) · car (5) · flapping (4) · stability (4) · ballistics (3) · marine (3) · airfoil (3) · piloting (3) · cargo (3)
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