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Patents > IPCs: IPC B64C3/18 & Number of text pages: 1-2

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Construction (23) · frame (21) · Structure (12) · airplane (12) · Design (12) · wings (8) · monoplane (4) · ribs (4) · nervure (4) · fuselage (4) · spars (3) · metal (3) · aerodynamics (3) · LTA (3)
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