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Patents > CPCs: CPC B64C35/00 & Number of claims: 3-4

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hydroaeroplane (14) · Airplane (11) · design (10) · Hydroplane (9) · takeoff (6) · None (5) · landing (4) · marine (4) · aerodynamics (4) · wings (3) · buoyancy (3) · hybrid (3) · construction (3) · frame (3) · lift (3)
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