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Patents > CPCs : CPC B64C35/00 or CPC F03D3/00 & Number of figures: 10-30

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hydroaeroplane (14) · marine (8) · hydroplane (5) · design (5) · frame (5) · flying boat (4) · construction (4) · airplane (4) · None (3) · takeoff (3) · landing (3) · Hydro-aeroplane (3) · fuselage (3) · hybrid (3) · buoyancy (3)
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