Drilldown: Patents

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Patents > National tech categories : DE 77 or GB 4 without buoyant & Number of claims: 2-3

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LTA (15) · navigation (12) · None (10) · propulsion (9) · frame (7) · car (6) · stability (5) · takeoff (4) · propeller (4) · design (3) · wheels (3) · dirigible (3) · kite (3) · balloon (3)
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Showing below up to 41 results in range #1 to #41.

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