Drilldown: Patents

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Patents > Office: BE & Inventor country : CS or DE or GB

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airplane (10) · LTA (9) · design (9) · construction (5) · propellers (5) · frame (5) · control (4) · stability (3) · human-powered (3) · propulsion (3) · balloons (3) · subsystem (3) · wings (3) · aerodynamics (3)
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Showing below up to 39 results in range #1 to #39.

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