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Patents > CPCs : CPC B64B1/58 or CPC B64D17/80 & Number of claims: 9-40

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LTA (8) · construction (3) · dirigible (3) · texture (3) · ballonet (3) · balloon (3) · fabric (3) · safety (3) · navigation (3) · military (2) · propulsion (2) · frame (2) · envelope (2) · passenger (2) · stability (2) · car (2)
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