Drilldown: Patents

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Patents > Year granted: 1901 & Publication date: 1900 - 1999

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LTA (10) · propulsion (5) · propeller (5) · Frame (5) · None (4) · balloon (4) · propellers (4) · Wings (3) · kite (3) · whole (3) · navigation (3) · hybrid (3) · Helicopter (2) · dirigible (2) · subsystem (2) · car (2) · wheels (2) · balloons (2) · Airship (2)
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