Drilldown: Patents

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Patents > Office : BE or JP & National tech categories : BE 11e or None

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airplane (8) · LTA (6) · propulsion (5) · Landing (5) · subsystem (4) · Design (4) · takeoff (3) · stability (3) · gas (3) · motors (2) · mooring (2) · None (2) · navigation (2) · parachute (2) · safety (2) · storage (2) · wheels (2) · gas pressure (2) · Infrastructure (2) · ballonet (2)
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Showing below up to 31 results in range #1 to #31.

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