Drilldown: Patents

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Patents > Year granted: 1850 - 1859 & National tech categories : AT 77d or DE 77 or FR 6.2 or None

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None (28) · Hiellard (3) · Louis de Cherrier (2) · DELAHAYE (2) · Godwin Meade Pratt Swift, Viscount of Carlingford (2) · Marius Pellen (2) · D'Aldborough (2) · François-Paulin Terzuolo (2) · Samuel Champion (2) · Frédéric-Marie Piret (2) · Carl Armbruster (2) · Jean Lassie (2) · Benjamin O'Neale ALDBOROUGH (Earl of Stratford) (2) · Thomas Champion (2)
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LTA (45) · None (40) · navigation (29) · Propulsion (15) · balloon (10) · paddle-wheels (4) · safety (4) · parachute (3) · gas (3) · kite (2) · dirigible (2) · stability (2)
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