Drilldown: Patents

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Patents > IPCs: IPC B64C39/00 & CPCs : CPC B64C3/385 or CPC B64C39/003

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airplane (8) · Propellers (6) · Propulsion (5) · design (5) · Wings (4) · Frame (3) · Whole (3) · stability (3) · rudder (3) · Sustentation (2) · subsystem (2) · propeller (2) · navigation (2) · None (2) · construction (2) · ascension (2)
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