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Patents > Filing date: 1913 & IPCs : IPC B64C23/00 or IPC B64C35/00 & First filing: Yes

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hydroplane (13) · hydroaeroplane (6) · aerodynamics (5) · design (4) · frame (3) · wheels (3) · airplane (3) · marine (3) · buoyancy (3) · landing (3) · None (2) · subsystem (2) · propulsion (2) · inflation (2) · hydro-aeroplanes (2) · hybrid (2) · hydrodynamics (2) · wings (2) · flotation (2) · amerrissage (2)
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