Drilldown: Patents

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Patents > Inventor country: ES & Assigned to: None & Family year: 1900 - 1999

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LTA (15) · balloon (8) · aerodynamics (7) · propulsion (7) · hydrodynamics (6) · subsystem (6) · design (6) · None (5) · frame (5) · landing (4) · braking (4) · balloons (4)
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