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Patents > Inventors : Alfred E. Wunderlich or Alfred John Macy or Victor G. Gustafson

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propellers (48) · airplane (46) · hybrid (38) · LTA (34) · stability (25) · propulsion (10) · None (10) · rarefaction (10) · Sustentation (8) · ascension (7) · automatic stability (4) · helicopter (4) · control (4) · design (3) · navigation (3)
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