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Publication of FR712703ApublicationCriticalpatent/FR712703A/fr
B64C31/00—Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft
B64C31/04—Man-powered aircraft
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FR712703D1931-02-281931-02-28Dispositif d'hélice mû par force musculaire pour planeur, aviette, avion léger, canot, et tous autres véhicules
ExpiredFR712703A
(fr)