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Patents > Year granted: 1893 & Related to aircraft: Yes

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Carl Friedrich Billwiller (4) · de Préneuf (3) · Vicomte Decazes (3) · Rudolf Chillingworth (3) · Georg Wellner (2)
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LTA (19) · propulsion (13) · aerostat (8) · dirigible (7) · None (5) · safety (5) · navigation (5) · balloon (5) · frame (4) · propeller (3) · nacelle (3) · gas (3) · electricity (3) · infrastructure (3) · cargo (3) · car (3)
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