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Patents > Applicant person : Alfred E. Wunderlich or Antoine-Padoue Filippi or Isaac Bell

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propellers (65) · airplane (56) · hybrid (38) · LTA (32) · propulsion (25) · design (13) · sustentation (12) · ascension (10) · rarefaction (10) · subsystem (9) · aerodynamics (9) · helicopter (7) · lift (6) · frame (6) · construction (6) · marine (5) · wheels (5)
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Showing below up to 104 results in range #1 to #104.

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