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Patents > Inventors : Alfred E. Wunderlich or Antoine-Padoue Filippi or Charlotte Sturgess

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propellers (59) · airplane (52) · hybrid (39) · LTA (34) · propulsion (24) · None (15) · rarefaction (10) · sustentation (9) · Subsystem (8) · Ascension (8) · wheels (6) · Aerodynamics (6) · airfoil (6) · design (5) · texture (5) · navigation (5) · helicopter (5)
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