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B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
B64C11/006—Paddle wheels
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FR386696D1908-01-241908-01-24Roue à palettes particulièrement applicable aux auto-ballons, aéroplanes et autres engins de navigation aérienne
ExpiredFR386696A
(fr)