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Publication of FR827152ApublicationCriticalpatent/FR827152A/fr
B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
B64C11/16—Blades
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FR827152D1936-10-311937-09-27Perfectionnements apportés aux hélices pour aéroplanes ou autres engins travaillant dans les fluides
ExpiredFR827152A
(fr)