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Patents > Office : BE or LU or NL or NO or Other & Inventor country: ES & Number of text pages: 2-3

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LTA (9) · aerodynamics (4) · propulsion (4) · stability (4) · balloon (4) · mooring (3) · landing (3) · navigation (3) · frame (3) · design (3) · hydrodynamics (3) · balloons (3) · subsystem (3) · safety (3) · hangars (2) · propellers (2) · airplane (2) · track (2)
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