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Patents > CPCs : CPC B64C39/00 or CPC F04D25/088 & Number of figures: 8-10

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airplane (19) · Design (13) · Stability (9) · Frame (8) · None (7) · Construction (7) · propellers (6) · wings (6) · Lift (5) · propulsion (5) · HTA (4) · Whole (3) · fuselage (3) · marine (3) · Aerodynamics (3)
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