Drilldown: Patents

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Patents > National tech categories: GB 4 with buoyant & IPCs: None & Family year: 1800 - 1899 & Number of claims: None

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LTA (19) · whole (14) · propulsion (10) · car (9) · balloon (8) · frame (7) · rudder (7) · compartments (7) · propeller (6) · navigation (6) · metal (6) · parachute (5) · ascension (4) · valve (4) · wings (3) · marine (3) · electricity (3)
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Showing below up to 23 results in range #1 to #23.

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