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Patents > Office: FR & IPCs : IPC B64C11/24 or IPC B64C3/18

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construction (17) · design (13) · frame (12) · Airplane (11) · wings (8) · metal (5) · propellers (4) · Monoplane (4) · Wood (3) · Nacelle (3) · nervure (3) · lift (3) · propulsion (3) · sustentation (3) · aerodynamics (3)
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Showing below up to 34 results in range #1 to #34.

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