Drilldown: Patents

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Patents > Inventor country: ES & CPCs : CPC B64C11/306 or None

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LTA (17) · balloon (12) · propulsion (9) · navigation (8) · aerodynamics (4) · stability (4) · hydrodynamics (4) · braking (4) · safety (3) · car (3) · track (3) · subsystem (2) · hangars (2) · landing (2) · cargo (2) · nacelle (2) · hydrogen (2) · passenger (2) · frame (2)
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