Drilldown: Patents

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Patents > Inventor country : AH or ES & Granted: Yes & CPCs: None

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LTA (28) · propulsion (17) · balloon (16) · navigation (14) · frame (10) · aerodynamics (9) · airplane (8) · subsystem (8) · stability (7) · whole (5) · gas (4) · Dirigibles (4) · propellers (4) · Design (4) · propeller (4) · dirigible (4) · car (4) · braking (4) · hydrodynamics (4)
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