Drilldown: Patents

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Patents > Year granted: 1850 - 1859 & Grant date: 1800 - 1899 & Number of claims: None

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None (28) · Hiellard (3) · DELAHAYE (2) · Louis de Cherrier (2) · Henri Giffard (2) · Marc (2) · Frédéric-Marie Piret (2) · Nathan Scholfield (2) · Eugène-Joseph Varangot (2) · Prosper Meller‎ (2) · Carl Armbruster (2)
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LTA (63) · navigation (37) · None (28) · propulsion (13) · military (6) · projectile (5) · safety (5) · balloon (4) · infrastructure (3) · Parachute (3) · gas (3) · balloons (3) · propellers (3) · whole (2) · aviation (2) · dirigible (2) · dirigibles (2) · stability (2)
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