Drilldown: Patents

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Patents > Office : AT or BE & Patent agent : A. Wunderlich & Cie, Ingénieurs-Conseils or De Visscher et Graetz & National tech categories: BE K

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Airplane (51) · propellers (41) · hybrid (33) · LTA (29) · design (11) · ascension (10) · sustentation (9) · wings (7) · Rarefaction (6) · Frame (6) · construction (5) · propulsion (5) · helicopter (4) · control (4) · aerodynamics (4) · lift (3) · nervure (3) · stability (3)
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Showing below up to 67 results in range #1 to #67.

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