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Patents > Inventor country: DE & CPCs : CPC B64B1/40 or CPC B64C2700/6245

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LTA (17) · balloon (9) · None (5) · frame (5) · design (4) · suspension (4) · stability (4) · airship (4) · propulsion (3) · navigation (3) · Nacelle (3) · lift (3) · kite (3) · aerodynamics (3) · wings (3) · airplane (3)
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