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Patents > Supplementary to patent: None & CPCs: CPC B64C35/00 & Number of claims: 3-4

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hydroaeroplane (9) · None (5) · hydroplane (4) · airplane (3) · aerodynamics (3) · marine (3) · float (2) · seaplanes (2) · takeoff (2) · construction (2) · design (2)
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