AIRCRAFTS HEAVIER THAN AIR, NON-POWERED (AERONAUTICAL ENGINEERING)
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BTAERONAUTICAL ENGINEERING
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BTAIRCRAFTS (AERONAUTICAL ENGINEERING)
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UDC629.734
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Descriptor GERLUFTFAHRZEUGE SCHWERER ALS LUFT, OHNE ANTRIEB (LUFTFAHRTTECHNIK)
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Descriptor ENGAIRCRAFTS HEAVIER THAN AIR, NON-POWERED (AERONAUTICAL ENGINEERING)
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Descriptor FREAÉRONEFS PLUS LOURDS QUE L'AIR, SANS MOTEUR (TECHNIQUE AÉRONAUTIQUE)
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NTKITES (AERONAUTICAL ENGINEERING)
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NTPARACHUTES + PARAGLIDERS (AERONAUTICAL ENGINEERING)
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NTSAILPLANES (AERONAUTICAL ENGINEERING)