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Patents > National tech categories: FR 6.4 & IPCs : IPC B64B1/62 or IPC B64C31/06

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LTA (22) · kite (10) · Design (6) · Stability (6) · lift (5) · Construction (5) · hybrid (4) · Propulsion (4) · propellers (4) · navigation (4) · gas (4) · Frame (4) · Dirigibles (4) · Compartments (4) · subsystem (3) · Aerodynamics (3) · Ballonet (3) · Airship (3)
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Showing below up to 37 results in range #1 to #37.

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