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Patents > CPCs: CPC B64B1/40 & Number of diagram pages: 0-20 & Number of figures: 6-20

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LTA (20) · balloon (14) · None (6) · frame (6) · stability (5) · navigation (5) · car (5) · design (4) · airfoil (4) · rudder (4) · parachute (4) · captive (4) · kite (3) · gas (3) · hybrid (3) · dirigible (3) · airship (3)
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