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Patents > IPCs : IPC B64C27/04 or IPC B64C3/38 & Number of claims: 5-6

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airplane (14) · None (7) · control (7) · helicopter (6) · stability (5) · lift (5) · Propulsion (4) · propeller (4) · HTA (4) · frame (4) · wings (4) · design (4) · airfoil (4) · incidence (3) · whole (3) · sustentation (3) · biplane (3) · navigation (3)
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Showing below up to 36 results in range #1 to #36.

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