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Patents > CPCs : CPC B64C35/00 or CPC CPC B64C13/00 & Number of figures: 3-4

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hydroaeroplane (19) · None (18) · hydroplane (10) · frame (7) · airplane (6) · design (5) · Hydro-aeroplane (5) · seaplane (4) · buoyancy (4) · safety (3) · marine (3) · flying boat (3) · flotation (3) · wings (3) · floats (3) · aerodynamics (3)
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