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Patents > Office: CH & Number of claims: 2

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LTA (8) · Propulsion (6) · balloon (5) · propellers (5) · stability (5) · subsystem (5) · None (4) · airplane (4) · construction (3) · Frame (3) · propeller (3) · Wings (2) · lift (2) · navigation (2) · Design (2) · Aerodynamics (2) · whole (2) · gyroscope (2)
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