Drilldown: Patents

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Patents > IPCs : IPC B64C27/04 or IPC B64C3/54 & Number of claims: 4-30

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helicopter (17) · Airplane (15) · None (13) · propulsion (7) · hybrid (7) · wings (7) · stability (6) · sustentation (5) · control (5) · design (5) · lift (5) · Propellers (4) · propeller (4) · ascension (4) · aerodynamics (3) · HTA (3) · construction (3) · steering (3) · Frame (3)
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Showing below up to 58 results in range #1 to #58.

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