Drilldown: Patents

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

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airplane (7) · LTA (5) · design (3) · subsystem (3) · stability (3) · propellers (3) · wings (2) · motors (2) · human-powered (2) · flapping (2) · dirigibles (2) · hangars (2) · balloons (2)
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Showing below up to 24 results in range #1 to #24.

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