Drilldown: Patents

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Patents > Year filed: 1880 - 1889 & Inventor country : AU or DE & Patent agent: None

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LTA (20) · None (17) · propulsion (10) · balloon (6) · Control (6) · navigation (5) · airship (4) · whole (3) · ornithopter (2) · propeller (2) · marine (2) · kite (2) · frame (2) · flapping (2) · electricity (2) · steering (2)
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