Drilldown: Patents

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Patents > CPCs : CPC B64C2700/6274 or CPC B64C31/02 & Number of claims: 5-8

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None (9) · helicopter (8) · Airplane (7) · Propulsion (6) · hybrid (6) · design (5) · propellers (4) · Frame (4) · ascension (3) · construction (3) · propeller (3) · heavier-than-air (2) · sustentation (2) · stability (2) · safety (2) · aerodynamics (2) · lift (2) · Control (2)
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Showing below up to 23 results in range #1 to #23.

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