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Patents > IPCs : IPC B64C23/00 or IPC B64D27/00 & Number of claims: None

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airplane (9) · None (6) · stability (4) · Propellers (4) · lift (4) · Aerodynamics (4) · ascension (3) · propeller (3) · navigation (3) · motors (3) · hybrid (3) · gyroscope (2) · takeoff (2) · Subsystem (2) · LTA (2) · wings (2) · airship (2) · Design (2)
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Showing below up to 27 results in range #1 to #27.

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