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

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None (8) · airplane (6) · propulsion (6) · frame (4) · whole (4) · Propellers (4) · Lift (4) · Design (4) · helicopter (4) · propeller (3) · Ascension (3) · hybrid (2) · heavier-than-air (2) · Navigation (2) · fuselage (2) · suspension (2) · Sustentation (2) · construction (2)
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