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Patents > IPCs: IPC B64C3/52

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airplane (25) · None (14) · Wings (14) · lift (9) · wing warping (8) · navigation (8) · frame (7) · construction (6) · airfoil (6) · aerodynamics (5) · design (5) · stability (4) · sustentation (4) · Propulsion (4) · HTA (3) · steering (3) · subsystem (3) · Propellers (3)
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None (5)
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Showing below up to 44 results in range #1 to #44.

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