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Patents > Granted: Yes & IPCs: IPC B64B1/58 & Number of figures: 5-12

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LTA (27) · navigation (9) · frame (8) · ballonet (8) · gas (7) · airship (6) · balloon (6) · dirigible (6) · construction (6) · stability (6) · rudder (4) · design (4) · parachute (3) · subsystem (3) · propulsion (3) · Balloons (3)
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