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Patents > CPCs : CPC B64C2700/6274 or CPC Y10T24/44803 & Number of figures: 6-9

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None (18) · airplane (6) · helicopter (6) · propulsion (5) · Whole (4) · lift (4) · Design (4) · Hybrid (4) · frame (4) · propeller (3) · propellers (3) · Ascension (2) · navigation (2) · suspension (2) · Sustentation (2)
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