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Patents > Office : CA or DE or FR & IPCs: IPC B64C35/00 & Number of text pages: 3-70

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hydroaeroplane (12) · design (10) · hydroplane (9) · airplane (9) · wheels (6) · landing (6) · Frame (5) · takeoff (5) · Hybrid (4) · chassis (4) · fuselage (4) · marine (3) · construction (3) · wings (3) · floats (3)
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