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Patents > CPCs : CPC B64B1/40 or CPC F03D11/00 & Number of claims: 5-30

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LTA (12) · balloon (10) · stability (6) · None (4) · rudder (4) · navigation (4) · design (3) · safety (3) · kite (3) · frame (3) · gas (3) · airship (3) · car (3) · parachute (2) · construction (2) · captive (2) · fabric (2) · propeller (2)
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