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B64C39/003—Aircraft not otherwise provided for with wings, paddle wheels, bladed wheels, moving or rotating in relation to the fuselage
B64C39/005—Aircraft not otherwise provided for with wings, paddle wheels, bladed wheels, moving or rotating in relation to the fuselage about a horizontal transversal axis
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FR676480D1928-06-141929-06-10Perfectionnements aux appareils de navigation aérienne
ExpiredFR676480A
(fr)