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Patents > National tech categories: None & CPCs: CPC B64C39/00 & Number of figures: 2-5

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airplane (16) · None (14) · design (14) · frame (10) · construction (8) · wings (8) · stability (5) · whole (5) · biplane (4) · monoplane (4) · lift (3) · steering (2) · navigation (2) · rudder (2) · automatic stability (2) · control (2) · sustentation (2) · propellers (2) · keel (2) · aerodynamics (2)
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None (3)
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Showing below up to 49 results in range #1 to #49.

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