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Patents > Year filed: 1902 & Citations from after 1930: None & Number of figures: 3-5

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Antoine-Padoue Filippi (3) · Frederick Marshall Osgood (2) · Antoine-Charles Mary (2) · Janko Klopčić (2)
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LTA (18) · propulsion (11) · balloon (8) · Propellers (7) · dirigible (6) · stability (5) · navigation (5) · frame (5) · propeller (5) · aerostat (4) · parachute (4) · construction (4) · hybrid (3) · wheels (3) · Airship (3) · airplane (3)
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